Jamie Smith said this quote

“ In the Muslim world, much of the violence that takes place is due to clashes between Shiites and the other major sect, the Sunni. The differences go back to a dispute over who was in charge of the Muslim faith after Muhammad died 632 years after Jesus, God’s son, walked the earth. I’m oversimplifying, but the Sunnis thought the new leader should be elected, and Shiites thought the leadership should stay within the family of Muhammad. The Sunnis, a larger faction, won the day, and the Prophet Muhammad’s close friend and adviser, Abu Bakr, became the first HMIC, the Head-Muslim-in-Charge. Officially, they called him their caliph and he ruled as sort of a head of state over the caliphate, the name for a Muslim state run by one religious leader. Since then the Shiites have fought the Sunnis for control because they don’t recognize the authority of the elected Muslim leaders—who for the most part have been Sunnis. That explains why, in a very oversimplified way, religious violence erupts regularly around the world, as each group attempts to seize control from the other . . . in this peaceful religion. ”