When was pi discovered

As early as 1900 BC, geometers from ancient civilizations such as Babylon, India, and Egypt, are already aware of one fundamental property of the circle: that a circle's circumference is always a little over three times that of its diameter. A more precise value was not available however as each of the civilizations computed pi only within 1% of its actual value.

Pi was discovered way back already the way to Babylonians and Egyptians 216 BC but none were all the way accurate they were close