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Pi Approximation Day - July 22
July 24 , 2020
1925 days
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- The fraction 22/7 is an approximate value of Pi.
- Pi was presented by William Jones in 1706, and the use of the symbol of Pi was popularized by Leonhard Euler.
- An 18th-century French mathematician, Georges Buffon, invented a way to calculate π based on probability.
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