The Portuguese have a unique maritime history. Due to their location and size. Almost every major city during that period was located on the coast allowing countless locations to build ships and perfect their technology.
Sectionalism affected the economis and politics of the U.S by creating a difference in the geography. The south used the slaves to elevate their plantation empire, the north used machines to manufacture clothing deviating from slavery and the west used ranches for livestock.

CORRECT ORDER:-
The kingdom of Mali loses some of its power.
Askia Muhammad becomes the ruler of Songhai.
Songhai conquers Timbuktu and controls trade activities.
Timbuktu booms with trade.
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