The region of Syria remained the Umayyads’ main power base thereafter, and Damascus was their capital.

Explanation
The Umayyad Caliphate ruled the Islamic Empire from 661-750 CE. It succeeded the Rashidun Caliphate which remain 30 years after the death of Muhammad. Muawiyah I became Caliph after the First Muslim Civil War. __________________________________________________________ Ameer Muawiyah was the founder and first caliph of the Umayyad Caliphate, serving from 661 until his death.  (30 years) Ameer Muawiyah Born:   602 AD, Mecca, Saudi Arabia Ameer Muawiyah Died:  680 AD, Damascus Ameer Muawiyah Children:  Yazid I Ameer Muawiyah Parents:  Abu Sufyan ibn Harb, Hind bint Utbah