- The $ sign was introduced in 1788.
- Forty percent of twins invent their own language.
- The US is the world's largest consumer of coffee.
- Different names for the number 0 include zero, nought, naught, nil, zilch and zip.
- Sound travels 10 times faster through granite than air.
- Even with wings, humans would be unable to fly.
- The world's first roller coaster opened in 1884 at Coney Island New York.
- Whales have the slowest metabolism of all animals.
- There are over 2,500 apple varieties grown in the U.S.
- 93% of households in Denmark consume wine (the highest % in the world with France second with 85% of households).
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