Scientific American spoke to Rojas about this history, the deeply engaging humanity of mathematics and the egos at play in defining the mathematical language we take for granted today.

Pi Day is celebrated on March 14. It's the celebration of the mathematical sign pi, and the date is symbolic because (3.14) signifies the first three digits of pi. This year ESSENCE is celebrating by ...

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.