Pi Day history: Perfect symmetry, a mathematical constant, wave formulas, and pie. - 0 views
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John Evans on 14 Mar 14"There are holidays like Mother's Day, Earth Day, Thanksgiving Day. Even a Talk-Like-Shakespeare Day. But Friday is Pi Day. Really! It's official. The date March 14 (that is, 3/14) was designated Pi Day by House Resolution 224 of the first session of the 111th Congress of the United States. It begins "Whereas the Greek letter (Pi) is the symbol for the ratio of the circumference of a circle to its diameter," and is followed by 11 more whereases before it resolves to support the designation of "Pi Day" to encourage "schools and educators to observe the day with appropriate activities that teach students about Pi and engage them about the study of mathematics.""