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Umar also spelled Omar (Mecca, about 585 – Medina, 3 November 644); Arabic: عمر بن Khaṭṭāb “Umar ibn al-Khaṭṭāb”) was one of the most influential guides (caliphs) of Islam in history. Belonging to the Banū meccano clan ʿAdi, of the Bànu Quraysh tribe, Omar was not one of the very first converts, but rather, he distinguished himself for his hatred of Islam (and for this reason some scholars call him the St. Paul of Islam).
