Before the civil war, the south’s economy was based on enslaved labor. large cities. immigrant workers. factories.

Explanation:

The south didn't factories as such, that kind of labor was in the North. So, the Southern economy was built on the African American slaves, must of the time in farming fields, because the manufacturing businesses were in the North.

Despite of the South slavery, the North was the center of national economy.

attacks by the seljuk. a devastating blow to the entire byzantine world was dealt by christian crusaders from the west. the venetians were eager to destroy byzantine power and offered the crusaders money, ships, and part of the spoils of war.

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