The earliest known textually evidenced approximations of PI date from around 1900 BC. They are found in the Egyptian Rhind Papyrus.
The first reference was in 1352
Archimedes (287-212 BC)
198A.D.
3.14159265">the number pi is equal to is 3.14159265
Archimedes
suck it
The earliest mention of pi comes from over 4000 years ago: the ancient Babylonians calculated the area of a circle by taking 3 times the square of its radius. One Babylonian tablet (ca. 1900-1680 BC) indicates a value of 3.125 for pi.
-23
762 is when the decimal of pi had the earliest occurrence of the string 999999. Pi has been represented by a Greek letter since the mid 19th century.
The earliest signs of the use of Pi was in the designs of the Old Kingdom pyramids in Egypt. Many divide the history of Pi into three periods: The ancient period during which Pi was studied in a geometrical manner, the classical era when Pi was fully developed after the creation of calculus in the 17th century and, most recently, the age of digital computers.
a number
No. Pi has been around for much longer. There's even a reference to it in the Bible.