exploratorium.edu Pi Day: History of Pi | Exploratorium history of pi. Babylonian Pi Day: History of Pi | Exploratorium originated with William Jones in 1706 3.125 in Babylon Pi Day: History of Pi | Exploratorium 3.125 in Babylon Pi Day: History of Pi | Exploratorium exploratorium.edu Pi Day: History of Pi | Exploratorium exploratorium.edu exploratorium.edu http://www.exploratorium.edu/pi/history_of_pi/ babylonians rough calculations of pi to the ancient Babylonians exploratorium.edu Pi Day: History of Pi (Exploratorium) Pi Day: History of Pi | Exploratorium 3.125 in Babylon Pi Day: History of Pi | Exploratorium 3.125 in Babylon