Ancient Romans recycled their pee. They peed in pots and emptied them in a barrel which they left on the street when filled. A public service would pick it up to turn the pee into ammonia which they used as bleach, mouthwash and more.
fact
Ancient Romans recycled their pee. They peed in pots and emptied them in a barrel which they left on the street when filled. A public service would pick it up to turn the pee into ammonia which they used as bleach, mouthwash and more.