Umar ibn al-Khattab

Umar ibn al-Khattab was a Companion of the Prophet Muhammad and the second caliph of Islam after Abu Bakr al-Siddiq. He came from the Quraysh tribe of Mecca, specifically from the Banu Adi clan. Sunni Muslims count him among the four caliphs known as al-Khulafaa al-Rashidun (the Rightly Guided Caliphs).

During his rule, Islam underwent major territorial expansion: the Islamic state reached the Levant, Egypt, Iraq, and parts of Persia. He is also credited with establishing administrative and financial systems that the new state required.

Early Life and Conversion to Islam

Umar was born in Mecca before Islam emerged. He initially opposed Islam, but later converted, an event recorded as significant in Islamic history. He became one of the Prophet's closest Companions, and his daughter Hafsa was among the Prophet's wives.

Rule

Following Abu Bakr's death, Umar succeeded to the caliphate. He was the first to be given the title Amir al-Muminin (Commander of the Faithful). During his time, the Islamic calendar based on lunar months was established, and the conquered lands were divided into provinces, each with a governor, judge, and tax collector.

Death and Succession

Umar was killed in Medina while performing prayer and was buried in Medina near the Prophet and Abu Bakr. He was succeeded by Uthman ibn Affan.