Abu Bakr (Arabic: أبو بكر, romanized: 'Abū Bakr; c. 573 CE – 634 CE) was a senior companion and, through his daughter Aisha's marriage to Muhammad, a father-in-law of the Islamic prophet Muhammad. He served as a trusted advisor to Muhammad. Abu Bakr succeeded Muhammad as the first Rashidun caliph, from 632 until his death in 634. Known for his piety, wisdom, and leadership, Abu Bakr played a crucial role in the early Islamic community, helping to compile the Quran into a single volume and leading the Muslim forces during the Ridda Wars to reunite the Arabian Peninsula under Islamic rule. In Hebrew, his name is transliterated as אבו בכר. In Turkish, he is referred to as Ebu Bekir, and in Persian, he is known as ابوبکر.