this is a helpful link : http://www.1001inventions.com/
they were not alone, china invented gunpowder, the Indians invented chess, dice and trade mark logos
and that's how civilizations flower when cultures merge together side by side.
all cultures helped in advancing each other - please don't mix faith with nationalistic racism
Islamic nations did accept the advances of other civilizations while adding more to them & they were not alone
Andalusian arms and armor - 13th to 15th centuries :( and yes they did adopt European sallets, sugarloaf & great-helms )
ancient Indian artifacts - as you can see there are a lot of accomplishments to build uponmetallic sword rockets of sultan Tipu - (yes they were more advanced the the British colonialists in this one)