The Toilet Took 5,000 Years. The Fix Was a Puddle.

From brick drains in the Indus Valley to a $23 million toilet in orbit: how humans spent 5,000 years learning to get rid of waste, and how each fix actually worked. Roman benches with no walls, castle toilets that emptied down the wall, the summer London's river made Parliament pay for sewers, and the bent pipe from 1775 that keeps your bathroom from smelling. 0:00 The first drains 2:24 Rome 4:41 Castles and the long step back 6:48 The Great Stink 9:31 The bend 11:12 The flush, and space