Children were widely used as labour in factories, mines, and agriculture during the British Industrial Revolution (1760-1840). Very often working the same 12-hour shifts that adults did, children as young as five years old were paid a pittance to climb under dangerous weaving machines, move coal through narrow mine shafts, and work in agricultural gangs.
This is a companion discussion topic for the original content at https://www.worldhistory.org/article/2216/child-labour-in-the-british-industrial-revolution/.