History of Wigan   (Help with ancient and recent history.)

Depends on your interpretation of Wigan. If we are talking Wigan Borough then there is evidence to suggest coal mining took place in Roman times with the burning of coal in arley. As there are a number of seams that outcrop in the town centre then it is a fair chance these will have been mined sporadically through a number of different times.

Wigan town wise you would be looking at around the the 16th century for mining. Peter Platts mines were in the 17th century at 1634 he ceased mining.