19 Fascinating Facts You Likely Didn't Know

1. Deuterium, one of the ingredients of nuclear fusion, is readily found in seawater, and "viewed as a potential fuel for a fusion reactor, a gallon of seawater could produce as much energy as 300 gallons of gasoline."

2. King Leonidas of Sparta was 60 years old at the Battle of Thermopylae.

3. Humans' and Dogs' brains have evolved to understand each others' vocalizations to some degree, including dogs understanding human laughter.

4. Axl Rose has a greater vocal range than Mariah Carey and sang lower notes than Barry White.

5. In the Vietnamese version of Cinderella (Tam Cam), at the end, Cinderella dismembered her step sister, put the body into a jar of food and sent it to her step mother to eat, which she enjoyed until she found the skull at the bottom of the jar and died of shock.

6. The Hudson Bay region of Canada has been found to have less gravity than the rest of the Earth.

7. Ancient Greek doctors believed that a woman’s womb was a separate creature with a mind of its own. When a woman was celibate for an extended time, her uterus could dislodge and glide freely about her body causing suffocation, seizures and hysteria.

8. Justin Bieber, a guy in his 30s, was banned from Facebook for sharing the same name with the famous celebrity.

9. Employees who work at Jack Daniels get a free bottle of Jack Daniels with their paychecks on the first Friday of every month.

10. After Mick Jagger rang up bandmate Charlie Watts during the night and asked "Where's my drummer?" Watts got out of bed, shaved, dressed in a suit, put on a tie and freshly shined shoes, then went to Jagger's room and punched him in the face.

11. Clint Eastwood wrote the soundtrack to several of his own movies, including Mystic River and Million Dollar Baby.

12. 3 quarters of men in Japan give all their money to their wives and receive an allowance.

13. Carrying the average pocket knife that you can buy from most stores can get you thrown in prison in New York City.

14. In England it was once legal to sell your wife.

15. In 2007 a Scottish man was walked in on having sex with his bike in a private hostel room. He was placed on probation and forced to register as a sex offender for three years.

16. After defeating the Persians, Alexander The Great started dressing like them and took two Persian wives.

17. In 2001, the DEA attempted to ban glow sticks from parties by labeling them as "drug paraphernalia."

18. There is a film called "Hari Puttar" made in India, which despite the name, is actually a remake of Home Alone, not Harry Potter.

19. Marlon Wayans was originally cast as Robin in Batman Returns & Batman Forever and even paid for the role despite not actually appearing in either film.