Innovations by the Moors or Muslims: http://www.independent.co.uk/news/science/how-islamic-inventors-changed-the-world-6106905.html

Origins of numbers as we know it:

http://www.lexiophiles.com/english/what-is-the-origin-of-numbers

The Moors:

https://en.wikipedia.org/wiki/Moors

http://www.thelatinlibrary.com/imperialism/notes/islamchron.html

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