5 ms·

Treadmills are an ancient invention[1] and not invented in 1818 as the article suggests. And I'm sure they were frequently "fitted" with slaves or prisoners [1

• foxyv 8y ago
  > These devices are no longer used for power or punishment, and the term "treadmill" has come to mean an exercise machine for running or walking in place. Weird, they still feel like industrial age torture devices ^_^