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

Today marks National Pi Day in the United States and around the world. The holiday commemorates a timeless symbol beloved by many in mathematical and scientific communities, while making the most ...

Not matter how you slice it, March 14 has something for everyone. The national holiday has been celebrated for decades now, since the late 1980s, thanks to a San Francisco physicist. Larry Shaw, also ...

When is National Pi Day 2025? What to know about Pi Day activities for kids, songs, movies, jokes, deals, snack ideas and more.

Pi Day is celebrated annually and is based on a symbol used in mathematics to represent a constant, Pi Day.org explains. It ...