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[[Archimedes]] of Syracuse (287-212 BC) carried out "the first theoretical calculation" of pi.<ref>[http://veling.nl/anne/templars/Pi_through_the_ages.html Pi through the ages]</ref> He said it was between 223/71 and 22/7. This is ten times better than the Egyptian and Babylonian values, and it is within 0.04 percent of the correct value.

[[Archimedes]] of Syracuse (287-212 BC) carried out "the first theoretical calculation" of pi.<ref>[http://veling.nl/anne/templars/Pi_through_the_ages.html Pi through the ages]</ref> He said it was between 223/71 and 22/7. This is ten times better than the Egyptian and Babylonian values, and it is within 0.04 percent of the correct value.

During the plague of 1665-1666, [[Isaac Newton]] was confined to the village of Woolsthorpe. There he calculated pi to 16 digits. He rightly considered such calculations to be a waste of time. “I am ashamed to tell you to how many figures I carried these computations, having no other business at the time," he wrote.<ref>Beckmann, Petr (2015-01-06). A History of Pi (Kindle Locations 2249-2250). St. Martin's Press. Kindle Edition.</ref>

During the plague of 1665-1666, [[Isaac Newton]] was confined to the village of Woolsthorpe. There he calculated pi to 16 digits. He rightly considered such calculations to be a waste of time. “I am ashamed to tell you to how many figures I carried these computations, having no other business at the time," he wrote.<ref>Beckmann, Petr (2015-01-06). ''A History of Pi'' (Kindle Locations 2249-2250). St. Martin's Press. Kindle Edition.</ref>

In 1873, Abraham Shanks spent twenty years calculating pi to 707 places. Due to an error in his calculations, only the first 527 digits were correct.

In 1873, Abraham Shanks spent twenty years calculating pi to 707 places. Due to an error in his calculations, only the first 527 digits were correct.