Bear Witness to shit you didnt learn in school
What's funny is you think they actually invented all of this. The Romans beat them by over 1000 years, and they merely were using math that was invented by Egyptians and Greeks before them. Archimedes invented calculus. The Moors were very advanced for their time, but they weren't as advanced as the civilizations that they replaced.
In many cases what they did was transmitted knowledge that had been beaten down by primitive witchburning supserstition. Some innovations came to Mauritania (Maur = "Moor", basically Berber rather than Arab) by the Romans, and then reintroduced to the relatively backward Europe after the latter had left them behind or failed to incorporate them.
the operative phrase being "relatively backward Europe"----
RELATIVE------but 'relative to whom or what'------easy---relative to the NON MOORISH GREEKS, relative to the NON MOORISH Iran, relative even to NON MOORISH INDIA----and NON MOORISH CHINA. If Peru had been an issue---relative to NON MOORISH PERU. black muslims like to make an issue that ------when spain was held by muslims---it
was a bit less primitive than the natives of iceland