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 ----------------------------------------------------------- New Updates Check out: thereelonarchitecture.com @thereel.on.architecture [Instagram] @tropicalnyaw [twitter]