Abu Bakr As-Siddiq, popularly known by his nickname Abu Bakr was a senior companion (Sahabi) and the father-in-law of the Islamic prophet Muhammad. He ruled over the Rashidun Caliphate from 632–634 CE when he became the first Muslim Caliph...
Umar, also spelled Omar, Umar ibn Al-Khattab, Umar Son of Al-Khattab, was one of the most powerful and influential Muslim caliphs (rulers) in history. He was a companion of the Islamic prophet Muhammad. He succeeded Abu Bakr (632–634) as th...
