Polytheism was really old, of course. But intellectual polytheism (which requires an esoteric treatment of gods as metaphors) was basically new and then lasted for 1000 years. Pythagoras is also credited with coining the term “philosophy” and the term “Cosmos.”

In addition to his coinage, he also started the first communist society. So many opposites. Music/math, religion/science, communism/capitalism, harmony/war (he conquered the sybarites), etc. He was vegetarian but, when he discovered his eponymous theorem, he sacrificed a “Hecatomb” at Delphi — that’s 100 cattle.

Of course, all of this is disputed. (But happy to provide sources for any of it).

He is textually associated with the druids and the Jews! Nuts.