Karbala Iraq, c. 680 The Battle of Karbala 680 cemented a division that still exists between Islam’s Sunni and Shia branches. Initially, the dispute began over succession to the Caliphate of Mohammed because the Prophet did not explicitly appoint as a successor thus throwing succession into a tizzy. Ali, who was Muhammad’s son-in-law, blood cousin, and first male to accept Islam at 12 years old felt he was the correct choice, and rightful successor because Muhammad did not have any male children. But the Sunni’s disagreed, believing the hadith stated succession should be on merit and consultation by the leadership.…