During the 1600's, boys and girls in England wore dresses until they were about seven years old.
63
A baboon called Jackie became a private in the South African army in World War I.
65
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
The exact cause of death and burial site of Genghis Khan is unknown, because all of the 2000 funeral guests and 800 soldiers were killed in order to preserve the secret.
16
Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
153
Originally, Du Pont, Inc. was a tiny gun powder mill in New Jersey.
20
Traces of cocaine were found on 99% of UK bank notes in a survey in London in 2000.
142

