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	<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Chwarel_Cors-y-bryniau</id>
	<title>Chwarel Cors-y-bryniau - Hanes golygu</title>
	<link rel="self" type="application/atom+xml" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Chwarel_Cors-y-bryniau"/>
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	<updated>2026-05-06T12:09:21Z</updated>
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	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=10751&amp;oldid=prev</id>
		<title>Cyfaill Eben am 11:21, 9 Chwefror 2021</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=10751&amp;oldid=prev"/>
		<updated>2021-02-09T11:21:49Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 12:21, 9 Chwefror 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;arr &lt;/del&gt;ochr ddwyreiniol [[Moel Tryfan]] yw &#039;&#039;&#039;Chwarel Cors-y-Bryniau&#039;&#039;&#039;. Gelwir hi’n &#039;&#039;Alexandra&#039;&#039;, neu &#039;&#039;Alexandria&#039;&#039; ar adegau.&amp;lt;ref&amp;gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llafar Gwlad, 2007)&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ar &lt;/ins&gt;ochr ddwyreiniol [[Moel Tryfan]] yw &#039;&#039;&#039;Chwarel Cors-y-Bryniau&#039;&#039;&#039;. Gelwir hi’n &#039;&#039;Alexandra&#039;&#039;, neu &#039;&#039;Alexandria&#039;&#039; ar adegau.&amp;lt;ref&amp;gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llafar Gwlad, 2007)&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Dechreuodd gŵr o’r enw Robert Hughes, Bryn Fferam gloddio yno ar ddechrau’r bedwaredd ganrif ar bymtheg. Cafodd drafferth cloddio &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yma&lt;/del&gt;, a daeth y gwaith i ben wedi ei farwolaeth. Erbyn 1824, roedd dynion o Gaernarfon wedi ceisio rhedeg y chwarel&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, ac yn ei &lt;/del&gt;hail-agor. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Cafod &lt;/del&gt;hwythau drafferth yno, a llawer eraill ar eu hôl. Mae’n debyg &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;fod &lt;/del&gt;y tirwedd &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ddim &lt;/del&gt;yn ffafriol iawn &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;â’r gwyr rhain oedd yn mentro &lt;/del&gt;yno. Ym 1862, agorodd fel chwarel swyddogol, a dechreuwyd gwaith ar y ‘Lefel Mawr’ a oedd tua 700 llath o hyd ar hyd ochr orllewinol Moel Tryfan. Cafwyd cyfalaf o £15,000 a chyflogwyd 140 o ddynion.&amp;lt;ref&amp;gt;Jean Lindsay, &#039;&#039;A History of the North Wales Slate Industry&#039;&#039;, (Newton Abbot, 1974), t.310.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Dechreuodd gŵr o’r enw Robert Hughes, Bryn Fferam&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;gloddio yno ar ddechrau’r bedwaredd ganrif ar bymtheg. Cafodd drafferth cloddio &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yno&lt;/ins&gt;, a daeth y gwaith i ben wedi ei farwolaeth. Erbyn 1824, roedd dynion o Gaernarfon wedi ceisio rhedeg y chwarel &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a&#039;i &lt;/ins&gt;hail-agor. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Cawsant &lt;/ins&gt;hwythau drafferth yno, a llawer eraill ar eu hôl. Mae’n debyg &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;nad oedd &lt;/ins&gt;y tirwedd yn ffafriol iawn &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;i&#039;r dynion hyn a fentrodd &lt;/ins&gt;yno. Ym 1862, agorodd fel chwarel swyddogol, a dechreuwyd gwaith ar y ‘Lefel Mawr’&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;a oedd tua 700 llath o hyd ar hyd ochr orllewinol Moel Tryfan. Cafwyd cyfalaf o £15,000 a chyflogwyd 140 o ddynion.&amp;lt;ref&amp;gt;Jean Lindsay, &#039;&#039;A History of the North Wales Slate Industry&#039;&#039;, (Newton Abbot, 1974), t.310.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Nid oedd llawer o lwc yn perthyn i’r lle hwn, ac ar ôl llawer o ymdrechion ni chafodd y lle lwyddiant &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hyd nes diwedd &lt;/del&gt;y ganrif pan oedd yn cynhyrchu tua 6000 tunnell o lechi ar ei hanterth, ac yn cyflogi tua 256 o weithwyr.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Nid oedd llawer o lwc yn perthyn i’r lle hwn, ac ar ôl llawer o ymdrechion ni chafodd y lle lwyddiant &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;tan ddiwedd &lt;/ins&gt;y ganrif pan oedd yn cynhyrchu tua 6000 tunnell o lechi ar ei hanterth, ac yn cyflogi tua 256 o weithwyr.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwymp yn y galw erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gweithiwyr &lt;/del&gt;ar streic a drefnwyd gan Undeb y Chwarelwyr. Roedd y &#039;&#039;Caernarvonshire Crown Slate Quarries Co. Ltd&#039;&#039; wedyn yn gyfrifol am y chwarel o 1918 ymlaen. Rhwng 1918 a 1931, rhan o gwmni arall, sef yr &#039;&#039;Amalgamated Slate Association Ltd.&#039;&#039;, a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cheisiodd eu rhedeg &lt;/del&gt;ar y cyd gyda [[Chwarel Moel Tryfan]] a [[Chwarel Cilgwyn]] yn ogystal â chwarel yng Nghapel Curig.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwymp yn y galw &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;am lechi &lt;/ins&gt;erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gweithwyr &lt;/ins&gt;ar streic a drefnwyd gan Undeb y Chwarelwyr. Roedd y &#039;&#039;Caernarvonshire Crown Slate Quarries Co. Ltd&#039;&#039; wedyn yn gyfrifol am y chwarel o 1918 ymlaen. Rhwng 1918 a 1931, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;daeth yn &lt;/ins&gt;rhan o gwmni arall, sef yr &#039;&#039;Amalgamated Slate Association Ltd.&#039;&#039;, a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;geisiodd ei gweithredu &lt;/ins&gt;ar y cyd gyda [[Chwarel Moel Tryfan]] a [[Chwarel Cilgwyn]] yn ogystal â chwarel yng Nghapel Curig.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Cafodd eu siomi &lt;/del&gt;gan y diffyg galw ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hynyn &lt;/del&gt;dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 am resymau iechyd a diogelwch.&amp;lt;ref&amp;gt;[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Siomwyd y cwmni &lt;/ins&gt;gan y diffyg galw &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;am lechi &lt;/ins&gt;ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hwnnw &lt;/ins&gt;dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 am resymau iechyd a diogelwch.&amp;lt;ref&amp;gt;[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Cyfaill Eben</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=10747&amp;oldid=prev</id>
		<title>Irion am 12:12, 8 Chwefror 2021</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=10747&amp;oldid=prev"/>
		<updated>2021-02-08T12:12:33Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 13:12, 8 Chwefror 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;i’r &lt;/del&gt;ochr ddwyreiniol &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;i &lt;/del&gt;[[Moel Tryfan]] yw &#039;&#039;&#039;Chwarel Cors-y-Bryniau&#039;&#039;&#039;. Gelwir hi’n &#039;&#039;Alexandra&#039;&#039;, neu &#039;&#039;Alexandria&#039;&#039; ar adegau.&amp;lt;ref&amp;gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llafar Gwlad, 2007)&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;arr &lt;/ins&gt;ochr ddwyreiniol [[Moel Tryfan]] yw &#039;&#039;&#039;Chwarel Cors-y-Bryniau&#039;&#039;&#039;. Gelwir hi’n &#039;&#039;Alexandra&#039;&#039;, neu &#039;&#039;Alexandria&#039;&#039; ar adegau.&amp;lt;ref&amp;gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llafar Gwlad, 2007)&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Dechreuodd gŵr o’r enw Robert Hughes, Bryn Fferam gloddio yno ar ddechrau’r bedwaredd ganrif ar bymtheg. Cafodd drafferth cloddio yma, a daeth y gwaith i ben wedi ei farwolaeth. Erbyn 1824, roedd dynion o Gaernarfon wedi ceisio rhedeg y chwarel, ac yn ei hail-agor. Cafod hwythau drafferth yno, a llawer eraill ar eu hôl. Mae’n debyg fod y tirwedd ddim yn ffafriol iawn â’r gwyr rhain oedd yn mentro yno. Ym 1862, agorodd fel chwarel swyddogol, a dechreuwyd gwaith ar y ‘Lefel Mawr’ a oedd tua 700 llath o hyd ar hyd ochr orllewinol Moel Tryfan. Cafwyd cyfalaf o £15,000 a chyflogwyd 140 o ddynion.&amp;lt;ref&amp;gt;Jean Lindsay, &amp;#039;&amp;#039;A History of the North Wales Slate Industry&amp;#039;&amp;#039;, (Newton Abbot, 1974), t.310.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Dechreuodd gŵr o’r enw Robert Hughes, Bryn Fferam gloddio yno ar ddechrau’r bedwaredd ganrif ar bymtheg. Cafodd drafferth cloddio yma, a daeth y gwaith i ben wedi ei farwolaeth. Erbyn 1824, roedd dynion o Gaernarfon wedi ceisio rhedeg y chwarel, ac yn ei hail-agor. Cafod hwythau drafferth yno, a llawer eraill ar eu hôl. Mae’n debyg fod y tirwedd ddim yn ffafriol iawn â’r gwyr rhain oedd yn mentro yno. Ym 1862, agorodd fel chwarel swyddogol, a dechreuwyd gwaith ar y ‘Lefel Mawr’ a oedd tua 700 llath o hyd ar hyd ochr orllewinol Moel Tryfan. Cafwyd cyfalaf o £15,000 a chyflogwyd 140 o ddynion.&amp;lt;ref&amp;gt;Jean Lindsay, &amp;#039;&amp;#039;A History of the North Wales Slate Industry&amp;#039;&amp;#039;, (Newton Abbot, 1974), t.310.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=10744&amp;oldid=prev</id>
		<title>86.134.19.185 am 12:10, 8 Chwefror 2021</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=10744&amp;oldid=prev"/>
		<updated>2021-02-08T12:10:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 13:10, 8 Chwefror 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi i’r ochr ddwyreiniol i [[Moel Tryfan]] yw Chwarel Cors-y-Bryniau. Gelwir hi’n &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&lt;/del&gt;&#039;&#039;Alexandra&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&lt;/del&gt;&#039;&#039;, neu &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&lt;/del&gt;&#039;&#039;Alexandria&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&lt;/del&gt;&#039;&#039; ar adegau.&amp;lt;ref&amp;gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llafar Gwlad, 2007)&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi i’r ochr ddwyreiniol i [[Moel Tryfan]] yw &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&#039;&lt;/ins&gt;Chwarel Cors-y-Bryniau&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&#039;&lt;/ins&gt;. Gelwir hi’n &#039;&#039;Alexandra&#039;&#039;, neu &#039;&#039;Alexandria&#039;&#039; ar adegau.&amp;lt;ref&amp;gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llafar Gwlad, 2007)&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Dechreuodd &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gwr &lt;/del&gt;o’r enw Robert Hughes, Bryn Fferam gloddio yno ar ddechrau’r bedwaredd ganrif ar bymtheg. Cafodd drafferth cloddio yma, a daeth y gwaith i ben wedi ei farwolaeth. Erbyn 1824, roedd dynion o Gaernarfon wedi ceisio rhedeg y chwarel, ac ei hail-agor. Cafod hwythau drafferth yno, a llawer eraill ar eu &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hol&lt;/del&gt;. Mae’n debyg fod y tirwedd ddim yn ffafriol iawn &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a’r &lt;/del&gt;gwyr rhain oedd yn mentro yno. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Yn &lt;/del&gt;1862, agorodd fel chwarel swyddogol, a dechreuwyd gwaith ar y ‘Lefel Mawr’ a oedd tua 700 llath o hyd ar hyd ochr orllewinol Moel Tryfan. Cafwyd cyfalaf o £15,000 a chyflogwyd 140 o ddynion.&amp;lt;ref&amp;gt;Jean Lindsay, &#039;&#039;A History of the North Wales Slate Industry&#039;&#039;, (Newton Abbot, 1974), t.310.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Dechreuodd &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gŵr &lt;/ins&gt;o’r enw Robert Hughes, Bryn Fferam gloddio yno ar ddechrau’r bedwaredd ganrif ar bymtheg. Cafodd drafferth cloddio yma, a daeth y gwaith i ben wedi ei farwolaeth. Erbyn 1824, roedd dynion o Gaernarfon wedi ceisio rhedeg y chwarel, ac &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yn &lt;/ins&gt;ei hail-agor. Cafod hwythau drafferth yno, a llawer eraill ar eu &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hôl&lt;/ins&gt;. Mae’n debyg fod y tirwedd ddim yn ffafriol iawn &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;â’r &lt;/ins&gt;gwyr rhain oedd yn mentro yno. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Ym &lt;/ins&gt;1862, agorodd fel chwarel swyddogol, a dechreuwyd gwaith ar y ‘Lefel Mawr’ a oedd tua 700 llath o hyd ar hyd ochr orllewinol Moel Tryfan. Cafwyd cyfalaf o £15,000 a chyflogwyd 140 o ddynion.&amp;lt;ref&amp;gt;Jean Lindsay, &#039;&#039;A History of the North Wales Slate Industry&#039;&#039;, (Newton Abbot, 1974), t.310.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Nid oedd llawer o lwc yn perthyn i’r lle hwn, ac ar ôl llawer o ymdrechion ni chafodd y lle lwyddiant hyd nes diwedd y ganrif &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ymhle roedd &lt;/del&gt;yn cynhyrchu tua 6000 tunnell o lechi ar ei hanterth, ac yn cyflogi tua 256 o weithwyr.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Nid oedd llawer o lwc yn perthyn i’r lle hwn, ac ar ôl llawer o ymdrechion ni chafodd y lle lwyddiant hyd nes diwedd y ganrif &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pan oedd &lt;/ins&gt;yn cynhyrchu tua 6000 tunnell o lechi ar ei hanterth, ac yn cyflogi tua 256 o weithwyr.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwymp yn y galw erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r gweithiwyr ar streic a drefnwyd gan Undeb y Chwarelwyr. Roedd y &amp;#039;&amp;#039;Caernarvonshire Crown Slate Quarries Co. Ltd&amp;#039;&amp;#039; wedyn yn gyfrifol am y chwarel o 1918 ymlaen. Rhwng 1918 a 1931, rhan o gwmni arall, sef yr &amp;#039;&amp;#039;Amalgamated Slate Association Ltd.&amp;#039;&amp;#039;, a cheisiodd eu rhedeg ar y cyd gyda [[Chwarel Moel Tryfan]] a [[Chwarel Cilgwyn]] yn ogystal â chwarel yng Nghapel Curig.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwymp yn y galw erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r gweithiwyr ar streic a drefnwyd gan Undeb y Chwarelwyr. Roedd y &amp;#039;&amp;#039;Caernarvonshire Crown Slate Quarries Co. Ltd&amp;#039;&amp;#039; wedyn yn gyfrifol am y chwarel o 1918 ymlaen. Rhwng 1918 a 1931, rhan o gwmni arall, sef yr &amp;#039;&amp;#039;Amalgamated Slate Association Ltd.&amp;#039;&amp;#039;, a cheisiodd eu rhedeg ar y cyd gyda [[Chwarel Moel Tryfan]] a [[Chwarel Cilgwyn]] yn ogystal â chwarel yng Nghapel Curig.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Cafodd eu siomi gan y diffyg galw ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hyn &lt;/del&gt;dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;oherwydd rhesymau &lt;/del&gt;iechyd a diogelwch.&amp;lt;ref&amp;gt;[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Cafodd eu siomi gan y diffyg galw ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hynyn &lt;/ins&gt;dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;am resymau &lt;/ins&gt;iechyd a diogelwch.&amp;lt;ref&amp;gt;[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>86.134.19.185</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=4544&amp;oldid=prev</id>
		<title>Irion am 17:05, 19 Hydref 2018</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=4544&amp;oldid=prev"/>
		<updated>2018-10-19T17:05:38Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 18:05, 19 Hydref 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot;&gt;Llinell 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwymp yn y galw erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r gweithiwyr ar streic a drefnwyd gan Undeb y Chwarelwyr. Roedd y &amp;#039;&amp;#039;Caernarvonshire Crown Slate Quarries Co. Ltd&amp;#039;&amp;#039; wedyn yn gyfrifol am y chwarel o 1918 ymlaen. Rhwng 1918 a 1931, rhan o gwmni arall, sef yr &amp;#039;&amp;#039;Amalgamated Slate Association Ltd.&amp;#039;&amp;#039;, a cheisiodd eu rhedeg ar y cyd gyda [[Chwarel Moel Tryfan]] a [[Chwarel Cilgwyn]] yn ogystal â chwarel yng Nghapel Curig.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwymp yn y galw erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r gweithiwyr ar streic a drefnwyd gan Undeb y Chwarelwyr. Roedd y &amp;#039;&amp;#039;Caernarvonshire Crown Slate Quarries Co. Ltd&amp;#039;&amp;#039; wedyn yn gyfrifol am y chwarel o 1918 ymlaen. Rhwng 1918 a 1931, rhan o gwmni arall, sef yr &amp;#039;&amp;#039;Amalgamated Slate Association Ltd.&amp;#039;&amp;#039;, a cheisiodd eu rhedeg ar y cyd gyda [[Chwarel Moel Tryfan]] a [[Chwarel Cilgwyn]] yn ogystal â chwarel yng Nghapel Curig.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; &lt;/del&gt;Cafodd eu siomi gan y diffyg galw ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod hyn dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 oherwydd rhesymau iechyd a diogelwch.&amp;lt;ref&amp;gt;[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Cafodd eu siomi gan y diffyg galw ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod hyn dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 oherwydd rhesymau iechyd a diogelwch.&amp;lt;ref&amp;gt;[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l19&quot;&gt;Llinell 19:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 19:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Diwydiant a Masnach]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Diwydiant a Masnach]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Categori:Chwareli llechi]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=4543&amp;oldid=prev</id>
		<title>Irion am 17:04, 19 Hydref 2018</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=4543&amp;oldid=prev"/>
		<updated>2018-10-19T17:04:55Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 18:04, 19 Hydref 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l5&quot;&gt;Llinell 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Nid oedd llawer o lwc yn perthyn i’r lle hwn, ac ar ôl llawer o ymdrechion ni chafodd y lle lwyddiant hyd nes diwedd y ganrif ymhle roedd yn cynhyrchu tua 6000 tunnell o lechi ar ei hanterth, ac yn cyflogi tua 256 o weithwyr.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Nid oedd llawer o lwc yn perthyn i’r lle hwn, ac ar ôl llawer o ymdrechion ni chafodd y lle lwyddiant hyd nes diwedd y ganrif ymhle roedd yn cynhyrchu tua 6000 tunnell o lechi ar ei hanterth, ac yn cyflogi tua 256 o weithwyr.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwymp yn y galw erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r gweithiwyr ar streic a drefnwyd gan Undeb y Chwarelwyr. Rhwng 1918 a 1931, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;daeth y chwarel &lt;/del&gt;o &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dan reolaeth cwmni &lt;/del&gt;arall, sef yr &#039;&#039;Amalgamated Slate Association Ltd.&#039;&#039;, a cheisiodd eu rhedeg ar y cyd gyda [[Chwarel Moel Tryfan]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwymp yn y galw erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r gweithiwyr ar streic a drefnwyd gan Undeb y Chwarelwyr&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. Roedd y &#039;&#039;Caernarvonshire Crown Slate Quarries Co. Ltd&#039;&#039; wedyn yn gyfrifol am y chwarel o 1918 ymlaen&lt;/ins&gt;. Rhwng 1918 a 1931, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rhan &lt;/ins&gt;o &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gwmni &lt;/ins&gt;arall, sef yr &#039;&#039;Amalgamated Slate Association Ltd.&#039;&#039;, a cheisiodd eu rhedeg ar y cyd gyda [[Chwarel Moel Tryfan]] &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a [[Chwarel Cilgwyn]] yn ogystal â chwarel yng Nghapel Curig&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Roedd y &#039;&#039;Caernarvonshire Crown Slate Quarries Co. Ltd&#039;&#039; wedyn yn gyfrifol am y chwarel o 1918 ymlaen. &lt;/del&gt;Cafodd eu siomi gan y diffyg galw ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod hyn dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 oherwydd rhesymau iechyd a diogelwch.&amp;lt;ref&amp;gt;[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; &lt;/ins&gt;Cafodd eu siomi gan y diffyg galw ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod hyn dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 oherwydd rhesymau iechyd a diogelwch.&amp;lt;ref&amp;gt;[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=4542&amp;oldid=prev</id>
		<title>Irion am 16:59, 19 Hydref 2018</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=4542&amp;oldid=prev"/>
		<updated>2018-10-19T16:59:56Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 17:59, 19 Hydref 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi i’r ochr ddwyreiniol i [[Moel Tryfan]] yw Chwarel Cors-y-Bryniau. Gelwir hi’n &#039;&#039;&#039;Alexandra&#039;&#039;&#039;, neu &#039;&#039;&#039;Alexandria&#039;&#039;&#039; ar adegau.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi i’r ochr ddwyreiniol i [[Moel Tryfan]] yw Chwarel Cors-y-Bryniau. Gelwir hi’n &#039;&#039;&#039;Alexandra&#039;&#039;&#039;, neu &#039;&#039;&#039;Alexandria&#039;&#039;&#039; ar adegau.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;ref&amp;gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llafar Gwlad, 2007)&amp;lt;/ref&amp;gt; &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Dechreuodd gwr o’r enw Robert Hughes, Bryn Fferam gloddio yno ar ddechrau’r bedwaredd ganrif ar bymtheg. Cafodd drafferth cloddio yma, a daeth y gwaith i ben wedi ei farwolaeth. Erbyn 1824, roedd dynion o Gaernarfon wedi ceisio rhedeg y chwarel, ac ei hail-agor. Cafod hwythau drafferth yno, a llawer eraill ar eu hol. Mae’n debyg fod y tirwedd ddim yn ffafriol iawn a’r gwyr rhain oedd yn mentro yno. Yn 1862, agorodd fel chwarel swyddogol, a dechreuwyd gwaith ar y ‘Lefel Mawr’ a oedd tua 700 llath o hyd ar hyd ochr orllewinol Moel Tryfan.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Dechreuodd gwr o’r enw Robert Hughes, Bryn Fferam gloddio yno ar ddechrau’r bedwaredd ganrif ar bymtheg. Cafodd drafferth cloddio yma, a daeth y gwaith i ben wedi ei farwolaeth. Erbyn 1824, roedd dynion o Gaernarfon wedi ceisio rhedeg y chwarel, ac ei hail-agor. Cafod hwythau drafferth yno, a llawer eraill ar eu hol. Mae’n debyg fod y tirwedd ddim yn ffafriol iawn a’r gwyr rhain oedd yn mentro yno. Yn 1862, agorodd fel chwarel swyddogol, a dechreuwyd gwaith ar y ‘Lefel Mawr’ a oedd tua 700 llath o hyd ar hyd ochr orllewinol Moel Tryfan. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Cafwyd cyfalaf o £15,000 a chyflogwyd 140 o ddynion.&amp;lt;ref&amp;gt;Jean Lindsay, &#039;&#039;A History of the North Wales Slate Industry&#039;&#039;, (Newton Abbot, 1974), t.310.&amp;lt;/ref&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Nid oedd llawer o lwc yn perthyn i’r lle hwn, ac ar ôl llawer o ymdrechion ni chafodd y lle lwyddiant hyd nes diwedd y ganrif ymhle roedd yn cynhyrchu tua 6000 tunnell o lechi ar ei hanterth, ac yn cyflogi tua 256 o weithwyr.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Nid oedd llawer o lwc yn perthyn i’r lle hwn, ac ar ôl llawer o ymdrechion ni chafodd y lle lwyddiant hyd nes diwedd y ganrif ymhle roedd yn cynhyrchu tua 6000 tunnell o lechi ar ei hanterth, ac yn cyflogi tua 256 o weithwyr.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot;&gt;Llinell 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwymp yn y galw erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r gweithiwyr ar streic a drefnwyd gan Undeb y Chwarelwyr. Rhwng 1918 a 1931, daeth y chwarel o dan reolaeth cwmni arall, sef yr &amp;#039;&amp;#039;Amalgamated Slate Association Ltd.&amp;#039;&amp;#039;, a cheisiodd eu rhedeg ar y cyd gyda [[Chwarel Moel Tryfan]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwymp yn y galw erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r gweithiwyr ar streic a drefnwyd gan Undeb y Chwarelwyr. Rhwng 1918 a 1931, daeth y chwarel o dan reolaeth cwmni arall, sef yr &amp;#039;&amp;#039;Amalgamated Slate Association Ltd.&amp;#039;&amp;#039;, a cheisiodd eu rhedeg ar y cyd gyda [[Chwarel Moel Tryfan]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Roedd y &#039;&#039;Caernarvonshire Crown Slate Quarries Co. Ltd&#039;&#039; wedyn yn gyfrifol am y chwarel. Cafodd eu siomi gan y diffyg galw ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod hyn dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 oherwydd rhesymau iechyd a diogelwch.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Roedd y &#039;&#039;Caernarvonshire Crown Slate Quarries Co. Ltd&#039;&#039; wedyn yn gyfrifol am y chwarel &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;o 1918 ymlaen&lt;/ins&gt;. Cafodd eu siomi gan y diffyg galw ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod hyn dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 oherwydd rhesymau iechyd a diogelwch.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;ref&amp;gt;[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&amp;lt;/ref&amp;gt; &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{eginyn}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Ffynonellau==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Ffynonellau==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llafar Gwlad, 2007)&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{cyfeiriadau}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Diwydiant a Masnach]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Diwydiant a Masnach]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=4513&amp;oldid=prev</id>
		<title>Irion: Symudodd Heulfryn y dudalen Chwarel Cors-y-Bryniau i Chwarel Cors-y-bryniau</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=4513&amp;oldid=prev"/>
		<updated>2018-10-16T08:43:58Z</updated>

		<summary type="html">&lt;p&gt;Symudodd Heulfryn y dudalen &lt;a href=&quot;/wici/Chwarel_Cors-y-Bryniau&quot; class=&quot;mw-redirect&quot; title=&quot;Chwarel Cors-y-Bryniau&quot;&gt;Chwarel Cors-y-Bryniau&lt;/a&gt; i &lt;a href=&quot;/wici/Chwarel_Cors-y-bryniau&quot; title=&quot;Chwarel Cors-y-bryniau&quot;&gt;Chwarel Cors-y-bryniau&lt;/a&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 09:43, 16 Hydref 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;cy&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(Dim gwahaniaeth)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=4511&amp;oldid=prev</id>
		<title>Irion: Symudodd Heulfryn y dudalen Chwarel Cors-y-Bryniau/Alexandra i Chwarel Cors-y-Bryniau heb adael dolen ailgyfeirio</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=4511&amp;oldid=prev"/>
		<updated>2018-10-16T08:42:22Z</updated>

		<summary type="html">&lt;p&gt;Symudodd Heulfryn y dudalen &lt;a href=&quot;/index.php?title=Chwarel_Cors-y-Bryniau/Alexandra&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Chwarel Cors-y-Bryniau/Alexandra (nid yw&amp;#039;r dudalen yn bodoli)&quot;&gt;Chwarel Cors-y-Bryniau/Alexandra&lt;/a&gt; i &lt;a href=&quot;/wici/Chwarel_Cors-y-Bryniau&quot; class=&quot;mw-redirect&quot; title=&quot;Chwarel Cors-y-Bryniau&quot;&gt;Chwarel Cors-y-Bryniau&lt;/a&gt; heb adael dolen ailgyfeirio&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 09:42, 16 Hydref 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;cy&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(Dim gwahaniaeth)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=1048&amp;oldid=prev</id>
		<title>Miriamlloydjones: Crëwyd tudalen newydd yn dechrau gyda &#039;Chwarel lechi i’r ochr ddwyreiniol i Moel Tryfan yw Chwarel Cors-y-Bryniau. Gelwir hi’n &#039;&#039;&#039;Alexandra&#039;&#039;&#039;, neu &#039;&#039;&#039;Alexandria&#039;&#039;&#039; ar adegau.   Dechreu...&#039;</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Cors-y-bryniau&amp;diff=1048&amp;oldid=prev"/>
		<updated>2017-12-10T17:30:56Z</updated>

		<summary type="html">&lt;p&gt;Crëwyd tudalen newydd yn dechrau gyda &amp;#039;Chwarel lechi i’r ochr ddwyreiniol i &lt;a href=&quot;/wici/Moel_Tryfan&quot; title=&quot;Moel Tryfan&quot;&gt;Moel Tryfan&lt;/a&gt; yw Chwarel Cors-y-Bryniau. Gelwir hi’n &amp;#039;&amp;#039;&amp;#039;Alexandra&amp;#039;&amp;#039;&amp;#039;, neu &amp;#039;&amp;#039;&amp;#039;Alexandria&amp;#039;&amp;#039;&amp;#039; ar adegau.   Dechreu...&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Tudalen newydd&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Chwarel lechi i’r ochr ddwyreiniol i [[Moel Tryfan]] yw Chwarel Cors-y-Bryniau. Gelwir hi’n &amp;#039;&amp;#039;&amp;#039;Alexandra&amp;#039;&amp;#039;&amp;#039;, neu &amp;#039;&amp;#039;&amp;#039;Alexandria&amp;#039;&amp;#039;&amp;#039; ar adegau. &lt;br /&gt;
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Dechreuodd gwr o’r enw Robert Hughes, Bryn Fferam gloddio yno ar ddechrau’r bedwaredd ganrif ar bymtheg. Cafodd drafferth cloddio yma, a daeth y gwaith i ben wedi ei farwolaeth. Erbyn 1824, roedd dynion o Gaernarfon wedi ceisio rhedeg y chwarel, ac ei hail-agor. Cafod hwythau drafferth yno, a llawer eraill ar eu hol. Mae’n debyg fod y tirwedd ddim yn ffafriol iawn a’r gwyr rhain oedd yn mentro yno. Yn 1862, agorodd fel chwarel swyddogol, a dechreuwyd gwaith ar y ‘Lefel Mawr’ a oedd tua 700 llath o hyd ar hyd ochr orllewinol Moel Tryfan.&lt;br /&gt;
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Nid oedd llawer o lwc yn perthyn i’r lle hwn, ac ar ôl llawer o ymdrechion ni chafodd y lle lwyddiant hyd nes diwedd y ganrif ymhle roedd yn cynhyrchu tua 6000 tunnell o lechi ar ei hanterth, ac yn cyflogi tua 256 o weithwyr. &lt;br /&gt;
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Daeth cwymp yn y galw erbyn 1913, a bu rhaid diswyddo nifer o’r gweithiwyr, ac o ganlyniad aeth tua 200 o’r gweithiwyr ar streic a drefnwyd gan Undeb y Chwarelwyr. Rhwng 1918 a 1931, daeth y chwarel o dan reolaeth cwmni arall, sef yr &amp;#039;&amp;#039;Amalgamated Slate Association Ltd.&amp;#039;&amp;#039;, a cheisiodd eu rhedeg ar y cyd gyda [[Chwarel Moel Tryfan]].&lt;br /&gt;
&lt;br /&gt;
Roedd y &amp;#039;&amp;#039;Caernarvonshire Crown Slate Quarries Co. Ltd&amp;#039;&amp;#039; wedyn yn gyfrifol am y chwarel. Cafodd eu siomi gan y diffyg galw ar ôl diwedd yr Ail Ryfel Byd, ac erbyn y cyfnod hyn dim ond 62 o weithwyr oedd yn gyflogedig yno. Daeth y gwaith yno i ben erbyn 1972 oherwydd rhesymau iechyd a diogelwch. &lt;br /&gt;
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==Ffynonellau==&lt;br /&gt;
&lt;br /&gt;
Tomos, Dewi &amp;#039;&amp;#039;Chwareli Dyffryn Nantlle&amp;#039;&amp;#039; (Llafar Gwlad, 2007)&lt;br /&gt;
&lt;br /&gt;
[http://www.coflein.gov.uk/cy/site/40528/details/alexandra-quarrycors-y-bryniau-quarry  Cofnod o’r lle hwn ar wefan y Comisiwn Brenhinol]&lt;br /&gt;
&lt;br /&gt;
[[Categori: Diwydiant a Masnach]]&lt;/div&gt;</summary>
		<author><name>Miriamlloydjones</name></author>
	</entry>
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