How many major dynasties were in power following muhammads death

After Muhammad's death in 634, there were four caliphs later referred to by the Sunni as "rightfully guided," who succeeded Muhammad. However, from 656 there were conflicts over succession, and two civil wars (656-661 and 680-692) broke out within the community of Muslims.

After Muhammad's death in 634, there were four caliphs later referred to by the Sunni as "rightfully guided," who succeeded Muhammad. However, from 656 there were conflicts over succession, and two civil wars (656-661 and 680-692) broke out within the community of Muslims.

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