In the Abbasid caliphate, which of these was true of succession principles?

In the Abbasid caliphate, which of these was true of succession principles?

• No clear rule of succession was established

Explanation:

here you go:)

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation:

wait history, who want to talk about history, boring.