Amazing feats.

However here are a few points.

The English (which was originally Arabic) and the Arabic (which was originally Indian) number systems were created around the same time at different parts of the world.

Algebra was a Muslim / Arabic creation.
http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Arabic_mathematic...

Actually the world Algebra comes from the Arabic word Al Jabr, which means, to reunite.

http://66.102.9.104/search?q=cache:xQd3c8tbz8MJ:www.1001inventions.com/i...

Here's a nice site which shows a 1001 Muslim and Arabic inventions.

www.1001inventions.com

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