24. Using Crocodile Poop as Contraceptive
Ancient Egyptian women took crocodile poop and put it in their genitalia to avoid pregnancies. This method could have worked too since crocodile poop has a fairly similar makeup to modern-day spermicides.
23. Dentures were Made from the Dead
In the 18th century, dentures were made from the teeth of dead soldiers.
22. The Creation of Deodorant
Deodorant was created in 1888 and has been around ever since! It replaced the old method of using flowers to mask odors.