- Babylonians measured the circumference of a circle as approximately 3 times the diameter, which is fairly close to today's measurement which uses the value of Pi (around 3.14)..
- There are 31,536,000 seconds in a year.
- Chinese mathematics developed around the 11th century BC and included important concepts related to negative numbers, decimals, algebra and geometry..
- 'Babe' was played by over 50 pigs.
- The Statue of Liberty weighs over 225 tons.
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