What types of prisons used treadmills as part of their labor system?
Frequently Asked Question about the extinct profession: Prison Treadmill Operator
Historically, treadmills were used in British prisons during the 19th century as a form of hard labor. Notably, the Millbank Prison and the Pentonville Prison incorporated treadmills into their labor systems. Inmates would walk on these devices to generate power or grind grain, serving both punitive and productive purposes within the prison labor framework.