Columbia subject headings:
Muḥammad, Prophet, -632--Biography.
Muḥammad, Prophet, -632--Death and burial.
Harvard subject headings:
Muḥammad, Prophet, -632--Biography.
Muḥammad, Prophet, -632--Death and burial.
Princeton subject headings:
Caliphate--History.
Islamic Empire--History--622-661.
Islamic Empire--Kings and rulers--Succession.
Muḥammad, Prophet, -632--Biography--History and criticism.
Muḥammad, Prophet, -632--Death and burial.
Muḥammad, Prophet, -632--Friends and associates.