Egyptians built the Great Pyramid of Giza with a ratio of 1760:280 cubits, which is approximately 2π. This means the Egyptians probably had an idea of the concept of pi.1

Archimedes is generally considered to be the first to have theoretically calculated pi.2

Liu Hui, a Chinese mathematician, created a polygon-based iterative algorithm and estimated that pi is equal to 3.1416.3

Computers can calculate over 12 trillion digits of pi. That number has increased dramatically over the past five years, rising from five trillion digits.4

Joey "JAWS" Chestnut ate 4.375 3-pound apple pies in 8 minutes.

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14.5 pounds of boysenberry pie in 8 minutes.

Patrick Bertoletti ate 47 slices of Big Apple Pizza in 10 minutes.

Rajveer Meena holds the world record for the most digits of pi memorized with 70,000 digits.