Slave Girls Were Forced to Burn With Viking Chieftains

A 10th-century Arab scholar named Ahmad ibn Fadlan claimed that in Viking funerals, chieftains were put in a tent aboard their ships for ten days. Then a “thrall” or a slave girl would undergo rituals, which involved getting intoxicated. Then she was sacrificed in the chieftain’s tent and the boat would be set on fire.
Romans Used Urine As Mouthwash

In Roman times, the locals would leave urine out, which would eventually turn into ammonia. The teeth-bleaching property of the urine was why Romans used it as mouthwash. A Roman poet named Catallus even wrote about this common yet ultra yucky practice.

