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
The universally popular Hershey bar was used overseas during World War II as currency.
112
Leonardo da Vinci was dyslexic, and he often wrote backwards.
77
Scientists are excavating the ruins of a major civilization which pre-dates both the pyramids and Stonehenge by over 7,000 years. In 15 years, they have uncovered only about 5% of the site.
21
The native Americans planted three sisters (corn, beans, and squash) together so that they would benefit each other. The corn provides a structure for the beans to climb. The beans provide the nitrogen to the soil, and the squash spreads along the ground preventing weeds.
30
February 1865 is the only month in recorded history to not have a full moon.
83
During the Gold Rush in 1849, some people paid as much as $100 for a glass of water!
65
Cleopatra wasn't Egyptian; she was Greek.
107