Ruling Classes in East and West Africa convert to Islam
610 - 750
Centralization of administration, Arabic becomes official written language, Arab coinage is established.
685 - 705
Groups of ascetics and mystics begin to form
700 - 800
Written collections of Hadith are compiled
800 - 899
Theological controversy over whether the Qur'an is created or uncreated and eternal.
813 - 833
West Africa begins to convert to Islam
980 - 1042
Sufi orders (turuq) are founded
1100 - 1250
Indian rulers in Delhi take title of Sultan.
1200 - 1299