The orthodox view is that Archimedes in the third century BC was the first man to calculate pi correctly at 3.14.8 Scholars do not accept that any of the mathematicians of the New World ever got anywhere near pi before the arrival of the Europeans in the sixteenth century. It is therefore disorienting to discover that the Great Pyramid at Giza (built more than 2000 years before the birth of Archimedes) and the Pyramid of the Sun at Teotihuacan, which vastly predates the conquest, both incorporate the value of pi. They do so, moreover, in much the same way, and in a manner which leaves no doubt
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