Pythagoras, one of the greatest philosophers and intellectuals of Greek history considered the number three to be a sacred number.

Pythagoras was a Greek philosopher and mathematician. He was the leader of the Brotherhood of Pythagoreans, a secret society which studied mathematics. Their motto was "All is number." The ...

Pythagoras was a smart guy: sure, he had some pretty rogue beliefs about beans, but the man knew his triangles, something ...