In 1897, Bayer, who is the maker of Aspirin, marketed the drug heroin.
56
Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
153
Clocks made before 1660 had only one hand - an hour hand.
41
Pilgrims did not eat with forks. They only used spoons, knives and their fingers.
44
English sailors were referred to as "limeys" because sailors added lime juice to their diet to combat scurvy.
69
The Titanic is about as long as the Empire State building is tall.
174
Cleopatra married two of her brothers.
47