1) The art of Sodomizing
2) How to skewer meat on a spit - Donner Kabob or Shish Kabob.
3) How to kill a million Armenians in 1916.
4) How to fight on the wrong side in WWI and nearly WWII
5) How to lose vast territories in WWI to a mad Arabized Englishman (Lawrence).
6) The art of trial without rights
7) Make jellied candies (”Turkish Delight”)
8) Have an American classic holiday named after them.
9) Adopt secularist Islam (Attaturk) and then elect a MB Towel head.
10) Get into NATO and then deserve to be booted out of that organization.
Furthermore Muslims invented the condom in 1245 using the lower intestine of a sheep. It was perfected by the British in 1685 by removing it from the sheep first.
...and don’t forget, they invented the Internet too!