What event led to the formation of the caliphates? The need to control large geographical areas

Power struggles after the death of Muhammad

They were formed to develop trade networks

The leaders were told to create the caliphates in a vision from Allah

Why were presidents andrew jackson and martin van buren unwilling to annex texas? a. they did not want texas to be admitted to the union as a slave state. b. they feared that the annexation of texas as a slave state would lead to political problems within the union. c. they thought that texas was too large to be admitted to the union as one state. d. they did not believe in the idea of manifest destiny.