Yr hanesydd ifanc Ioan Lord sy'n trafod hanes mwyngloddio yng nghanolbarth Cymru. The young historian Ioan Lord discusses the history of mining in mid Wales. Show more
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Yr hanesydd ifanc Ioan Lord sy'n trafod hanes mwyngloddio yng nghanolbarth Cymru. The young historian Ioan Lord discusses the history of mining in mid Wales. Show more