While the Muslims were in Spain they developed medicine, science, and technology. The Ottomans took control of the Constantinople which caused the end of the final outpost of Byzantine Empire.
A multi-ethnic empire was created and was lead by the Islamic caliph in the early 1700's. The Arabic language spread to the facilitated trade across Southwest Asia.
Mansa Musa was known throughout the region for his great pilgrimage to Mecca. Was also Mali's most famous Muslim ruler during the years 1312-1337. The most famous state was Mali in Western Sub-Sahara and was founded by Sundiata.