First, after the Arab conquests outside Arabia in 7th century, Islamic empire greatly expanded and stretch from Sind in east to Spain in the west. With no knowledge on governing such a large empire, Islam started to gather diverse groups of people
First, after the Arab conquests outside Arabia in 7th century, Islamic empire greatly expanded and stretch from Sind in east to Spain in the west. With no knowledge on governing such a large empire, Islam started to gather diverse groups of people