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 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 commemorates a timeless symbol beloved by many in mathematical ... The ratio is beloved by math and science enthusiasts for a reason: Pi serves critical functions in many of the ...