Archimedes knew more than we thought

This story is fascinating; they found a long-lost works of Archimedes under the text of a prayer book, and used modern technology to "see" under the prayer text.

After the text was recovered, it was discovered that Archimedes actually found some of the principles of calculus, and used them to figure out volumes and areas. He dealt with "actual" and "potential" infinity, which is exactly what calculus is about.

And he lived thousands of years before Newton!

A long-lost text by the ancient Greek mathematician shows that he had begun to discover the principles of calculus.