1. Vikings didn't wear horned helmets.
  2. In sub-Saharan Africa, 589 million people live without electricity. Most use wood, charcoal and dung to cook.
  3. The visible universe (planets, stars, galaxies) makes up less than 5% of the mass of the universe.
  4. Joseph Smith, founder of the Mormon church, wed 40 wives, including some who were already married and a 14-year-old.
  5. Sheep have a field of vision of around 300 degrees, allowing them to see behind themselves without having to turn their head.
  6. The Spanish flu caused about a third of total military deaths in WW1.
  7. 9 million combatants and 7 million civilians died as a result of WW1.
  8. Only about 3% of mammalian species and up to 15% of primate species are monogamous.
  9. Research suggests the story of one needy individual motivates charitable donors more than stats about millions of sufferers.
  10. In 1999, hackers revealed a security flaw in Hotmail allowing to log into any Hotmail account using the password "eh".
  11. Prostitution is legal in Canada. Buying the services of a prostitute is not.
  12. Earthquakes turn water into gold.
  13. There's a virus that attacks human DNA making people less intelligent, impairing brain activity, learning and memory.
  14. Mount Everest is littered with not just the corpses of climbers but an estimated 50 tons of waste, making it world's dirtiest mountain.
  15. 77%
    of Russia is made up of Siberia.
  16. By the end of 1993, there were only 623 websites on the World Wide Web.
  17. In one of the last battles of WW2, American and German soldiers fought together as allies against an SS division to defend an Austrian castle.
  18. During WW1, a Hungarian man was shot in the frontal lobe, making it impossible for him to fall asleep. He continued to live a full, sleepless life.
  19. Every 39 minutes, a new porn film is created in the U.S.
  20. Obese drivers are 78% more likely to die in a car crash.
  21. One of the only vertebrate species that can't yawn is the giraffe.
  22. The word "oxymoron" is an oxymoron. The Greek word "oxy" means "sharp" and "moron" means "dull".
  23. Rapper Tupac dated Madonna a year before his death.
  24. More than 870,000 Jews were killed at Treblinka with a staff of just 150 people.
  25. Saturn's rings are not solid. They are made up of bits of ice, dust and rock.
  26. Once a wolf has found a mate, they usually stay together for life.
  27. The longest chess game that is theoretically possible has 5,949 moves.
  28. Ostriches have three stomachs.
  29. Krubera Cave, the deepest known cave on Earth, has depth of 2,197 m (7,208 ft).
  30. The word for "roller coasters" in Russian translates to "American Mountains."
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