Umar was assassinated by the Persian slave Abu Lu'lu'a Firuz in 644. Umar is widely credited with expanding the Islamic world beyond Arabia and introducing the Hijri Calendar. [5][6] Historians generally regard him as one of the most powerful and influential Muslim caliphs in history. [7] Oct 30, 2025 · Umar I, the second Muslim caliph (from 634). Umar transformed the Islamic state from an Arabian principality into a world power, conquering Mesopotamia and Syria and beginning the conquest of Iran and Egypt. Jan 23, 2020 · Umar ibn al-Khattab (reigned 634 to 644 CE) was the second caliph of the Rashidun Caliphate (632 to 661 CE, as the first four caliphs are referred to by the Sunni Muslims). He was an early convert of Islam and one of the close companions of the Islamic Prophet Muhammad (lived 570 to 632 CE). So, Who is Umar Ibn Al-Khatab? He is the great man in simplicity, the simple in strength, the strong in justice and mercy. He is the man born of the land of the Peninsula, nurtured by Islam. He is the devout ascetic, whose devotion overflowed into action, intelligence, work, and construction. Umar ibn al-Khattab (in Arabic, عمر بن الخطاب) (c. 581 - November, 644), sometimes referred to as Umar Farooq or just as Omar or Umar, was from the Banu Adi clan of the Quraysh tribe, the tribe that dominated Mecca and of which the Prophet Muhammad was also a member. His full name is Umar ibn Al-Khattab ibn Nufayl ibn Abdul- Uzza. He was known as Abu Hafs and earned the nickname of Al Farooq (the Criterion) because he showed his Islam openly in Makkah and through him Allah distinguished between disbelief and faith. Aug 18, 2024 · Umar was a close companion of Prophet Muhammad and played a critical role in shaping the early Islamic state, emphasizing the principles of equity, accountability, and public welfare.