What Is Pi Day 2024. While pi day was only officially instated as a national holiday in 2009, the mathematical symbol, pi, has been around for 4,000 years. It is part of many formulas used in physics,.


What Is Pi Day 2024

Founded in 1988, and recognized by the u.s. Founded in 1988 at the exploratorium, pi (ฯ€) day has become an international holiday, celebrated live and online all around the world.

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