For centuries, most textile manufacturing relied on people working in their own homes. All that changed in 1761 when Richard Arkwright began construction of the first water-powered cotton mill in Derbyshire. Soon mills spread across the north of England and into Scotland and tasks were taken out of the cottage into the factory. There was a time when Britain sent textiles around the world: this is the story of the workforce, mainly women and children, who made this possible - and created the factory age.