Pi Day is celebrated annually on March 14, because its numerical date aligns with the first three digits of the mathematical constant π, 3.14. And in some places, particularly Massachusetts colleges, ...

Pi Day was first celebrated in 1988 at San Francisco's Exploratorium, a museum of science and technology that encourages visitors to be hands-on. The holiday was founded by physicist Larry Shaw, who ...

This holiday, which is observed every March 6, was first founded by fashion designer Ashley Lauren in 2016 to celebrate the ...

Pulaski Day will be observed on Monday, March 3. Chicago and Cook County government offices and courts will be closed.

The Muslim holiday of Ramadan starts tonight, Feb. 28, and lasts until March 29. The monthlong observance of Ramadan is a ...

Binghamton goes all out with St. Patrick's Day celebrations, but have you ever wondered why it's celebrated? Here's why, plus ...