RELIGION CONTRIBUTIONS :
The four rightly guided caliphs made great progress in their quest to spread Islam
Before his death, Muhammad had expressed a desire to spread the faith to the peoples of the north. Muslims of the day saw their victories as a sign of Allah's support and drew energy and inspiration from their faith.
ART CONTRIBUTIONS :
some Muslim scholars used Greek ideas in fresh new ways. others created new work
of the highest quality. in these ways, Muslims in the Abbasid lands, especially in Cordoba
and Baghdad, set the stage for a later revival of European learning.
LAW CONTRIBUTIONS :
Baghdad's population made up of different cultures and social classes, was typical for a large Muslim city in the eighth and ninth centuries. Muslim society was made up of four classes. The upper class included those who were in the second class. The lowest class was
composed of slaves. many slaves most frequently performed household work or fought in the military.