How many years did Umar rule as the second Rashidun caliph?
10
8
12
15
Answer
Umar ruled as the second Rashidun caliph from August 634 until his assassination in 644, a total of 10 years. During his reign, the caliphate expanded rapidly, conquering the Sasanian Empire and more than two-thirds of the Byzantine Empire.
Unraveling the Legacy of Umar: The Mighty 2nd Rashidun Caliph (634-644)