The area became one of the cradles of the Industrial Revolution, and was known as 'The Golden Valley'. There was great hardship among working people during this time, but many fortunes were made among the mill-owning classes. There was large-scale immigration from Ireland to find work building the railways and in the mills, which led to several instances of serious civil disturbances between the two communities. Michael Davitt, the Irish republican leader was among these immigrants, settling in Haslingden, where he received his education after losing an arm at the age of 11 in a mill accident.