And the Arabs gave the world algebra.
It was a truly international thing that developed over @3000 years.
Lots of people and lots of cultures had a hand in it, every one giving a step up to others.
Babylonians, Greeks, Indians, Arabs, Persians, Italians, Frenchmen, Germans, Sir Isaac Newton - All of them had a hand in what’s in the Middle School Algebra textbook.
But it took an American to show them what to do with it.