Notes part 1, video 1: Ch. 6
Notes part 2, video 3: Ch. 7 & 8
CRASH COURSE WORLD HISTORY
Spread of Islam:
Most of the first expansion in the Mediterranean region and the Middle East was by Arabian tribesmen (bedouin tribes).
The government under the Umayyads kept the concept of rule by a small Arab elite; full citizenship for Mawali was denied.
The Abbasids gave full citizenship to non-Arabs.
The second stage of Islamic expansion was led by non-Arabs. Sufi missionaries made for a more peaceful expansion and a less restrictive forms of Islam.
Converts, like in the Delhi sultanate, retained many of their previous Hindu beliefs and social systems.