Blaenavon - From Iron Town to World Heritage Site

Astudiaeth Jeremy Knight, cyn arolygydd Henebion Cadw, o hanes gwneud haearn yn ardal Blaenafon o'r cyfnod canoloesol ymlaen. Arweiniodd y galw cynyddol am ddur yn y 18fed ganrif, pan oedd gw?r ariannog yn chwilio am gyfleon buddsoddi, at newid chwyldroadol yn y diwydiant haearn.

In this book, Jeremy Knight, a former Inspector of Ancient Monuments with Cadw, sets out the history of ironmaking in the area from medieval times onwards. A greatly increased demand for steel in the 18th century, when those with money were looking for investment opportunities, led to radical change in the iron industry.