From a historic viewpoint, with Muhammad's death in AD 632, disagreement broke out over who should succeed him as leader of the Muslim community. Umar ibn al-Khattab, a prominent companion of Muhammad, nominated Abu Bakr. Others added their support and Abu Bakr was made the first caliph. This choice was disputed by some of Muhammad's companions, who held that Ali ibn Abi Talib, his cousin and son-in-law, had been designated his successor. Later, during the First Fitna and the Second Fitna the community divided into several sects and groups, each of which had its own idea about successorship. Finally, after Rashidun caliphate turned into Monarchy and Sultanates, while in most of the area during Muslim history Sunnis have hold the power and Shias emerged as their opposition.