What were some of the conditions
Southern states had to fulfill before
rejoining the Union?

Explanation:

in november 1781, john hanson became the first president of the united states in congress assembled, under the articles of confederation. many people have argued that john hanson, and not george washington, was the first president of the united states, but this is not quite true.

explanation:

these civilizations were located around fertile rivers, where they could produce an abundance of crops