Compare Shia vs. Sunni Islam

There are two main branches of Islam: Sunni and Shi'a. Sunni Islam is by far the largest group, although in some countries it is a minority. Sunnis have their historical roots in the majority group who followed Abu Bakr, an effective leader, as the successor of Muhammad, instead of his cousin and son-in-law Ali. Shi'ites are those who followed Ali, the closest relative of Muhammad, as Muhammad's successor.

name means submission
adherents are called Muslims
adherents 1.3 billion
percentage of parent religion
major branches
true successor of the prophet