March 14 is the day math lovers (and most other people) celebrate pi, the measurement calculating the ratio of a circle's circumference to its diameter, the first three numbers of which are 3.14.
The number itself can go on forever. Google announced today one of its employees had calculated pi to a record 31.4 trillion digits.
Whether you love math or pie (yes, pizza pie counts), you’ll enjoy some of the best social media posts celebrating Pi Day 2019.
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