“I hear they invented the zero.”
I think that was Hindus, but the Arabs did give us the other numbers. But I don’t know if they were Muslims at that time. Mohammed is late, c. 700 isn’t he?
Yeah, I don’t know if they were Muslim yet either. They gave us the Arabic numbering system (the Roman one sucked), arithmetic, the names of most stars, and they popularized coffee. They didn’t invent it but it was it wouldn’t be what it is today without them.
Algebra, actually. Not arithmetic.