While the U.S. may have 11 official federal holidays, there are actually thousands of quirky, themed days that make the ...

The value of the Pi was first calculated by Archimedes. The Pi symbol was introduced by William Jones, a Welsh mathematician, in 1706. In 1737, Leonhard Euler popularised the usage of the symbol.

It's Pi Day! While the celebration is focused on the mathematical symbol, it also acts as the perfect excuse to eat a delicious, savory pizza or sweet, mouthwatering pie. While fun to focus on the ...