Sunni Muslims belong to any one of four mutually recognized schools that formulate Sharia, or divine law: Hanafi, Hanbali, Maliki and Shafa’i . The differences among these groups are not considered sectarian, but rather analogous to the corpus of case law available to U.S. lawyers in various jurisdictions. A variety of Sufi groups, or spiritual brotherhoods, each having its own particular tradition of prayers, also subscribes to Sunni Islam.
Shiite Muslims, on the other hand, belong to one of three major subgroups: Bohras, Ithna’ashariyya, or Twelver Shiites, and Nizaris. The differences among these groups are significant.
Why did these divisions in Islam come about and how have they evolved over the centuries?
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