1. Roman charioteers earned far more than even the best-paid footballers and international sports stars of today, according to academic research.
  2. Some American officials, like FBI director J. Edgar Hoover, thought Albert Einstein was a soviet spy.
  3. There's a "sea organ" built on the coast of Croatia that plays music like an organ when waves crash in and out of it.
  4. In 2015, a Chinese billionaire bought a US$170 million painting by with his credit card so he could use the points for free airfare.
  5. The South American revolutionary Simon Bolivar was, at various times, president of Bolivia, Colombia, Ecuador, Peru and Venezuela.
  6. In Italy, 13, is not an unlucky number, but 17 is.
  7. In 2016, North Korea accidentally leaked its DNS data, showing they only have 28 ".kp" domains. In comparison, there are 10 million ".uk" domains.
  8. At least 13 Americans have died as a result of laxative overdose.
  9. Abraham Lincoln's wife was an opium addict.
  10. The mother of Matt Groening, creator of The Simpsons, was called Marge Wiggum.
  11. A popular way to cure impotence in the 14th century was to wear your trousers on your head for 24 hours.
  12. The Atlantic salmon's sense of smell is 1000 times greater than that of a dog.
  13. The world's first traffic signal was short lived. Installed in London in 1868, it exploded less than a month later, injuring its policeman operator.
  14. If a tree were planted for each Coca-Cola sold, we could reforest the Earth in three years.
  15. Americans eat 500 million pounds of peanut butter a year, enough to coat the floor, of the Grand Canyon.
  16. Monaco, at 2 sq km, is the world's most densely populated country. It has been ruled by the same family since 1419.
  17. The lottery of the Zimbabwe Banking Corporation was won in 2000 by Robert Mugabe, the president of Zimbabwe.
  18. UK's Dyslexia Research Centre is in Reading.
  19. In 2014, a single parking space in London was sold for £400,000.
  20. Until the 19th century, champagne was pink and had no bubbles.
  21. In Brazil, "Rio" is pronounced "Hio."
  22. One-third of babies born in Britain in 2013 are expected to live for a century.
  23. Humans spend 13% of their lives not focusing on anything in particular.
  24. Whale milk has the consistency of toothpaste.
  25. The Great Mosque at Djenné in Mali is the largest mud structure in the world.
  26. In 2002, an American bomber attempted to plant 18 bombs which, when they exploded, would form a giant smiley face.
  27. NASA estimates that the near-Earth asteroid, Eros, contains 20 billion tons of gold.
  28. An Ancient Egyptian cure for blindness was to pour mashed-up pig's eye into the patient's ear.
  29. The world's oldest fish hooks were found in a cave in Japan, dating from about 23,000 years ago.
  30. In 2012 alone, an estimated 2.8 million dog owners gave their dogs antidepressants.
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