sentences:  Although not mentioned in the Domesday book, records from 1272 show Trefonen as having an obligation to keep the lord's hounds
  .However, the village owes most of its current size to mining activity from the early 18th century until the last mine closed in 1891.During this period the resident populace became engaged in the extraction of the underlying coal, the quarrying of surface carboniferous limestone and its subsequent manufacturing use in a local pottery and brickworks.