The Long Island Museum - Today is National Pi Day, so called because it's March 14 or 3/14 or 3.14. The number π (pi) is a mathematical constant. Originally defined as the
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Trinx Mathematical Number PI To 1801 Decimals Greek Letter Math Classroom Science Educational Teacher Learning Homeschool Chart Display Supplies Teaching Aide Pie Black Wood Framed Art Poster 14x20 Framed On Paper Print
![On Pi Day, 22 facts about the world's most famous irrational number [From the archives] – Reading Eagle On Pi Day, 22 facts about the world's most famous irrational number [From the archives] – Reading Eagle](https://www.readingeagle.com/wp-content/uploads/2021/08/7d7eed9f63bc6acd8b2a0854131f4e18.jpg?w=630)