If you're over 100 years old, there's an 80% chance you're a woman.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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You share your birthday with at least 9 other million people in the world.
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The world's youngest parents were 8 and 9 and lived in China in 1910.
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Americans did not commonly use forks until after the Civil War.
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Women have a slightly higher average IQ than men.
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Every workday, 6.7 million people commute to Manhattan!
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