Both the Southern and Middle Colonies had fertile farmlands, but only the Middle Colonies was able to provide trading opportunities, thanks to their coastal lowland and bay-provided harbors. Southern Colonies highly contributed to the rise of cash crops such as rice, tobacco, and indigo. Slaves cultivate huge tracts of land and plantations owned by wealthy aristocrats and large landowners. On the other hand, Middle Colonies were more suitable for growing grain and livestock, with its environment ideal for small to large farms. More diverse workforce also exists in the Middle Colonies, consisting of farmers, fisherman, and merchants. Another notable contrast between the two colonies is that, for the people of the South, life developed as rough and rural while people of the Middle countries are deeply connected to the Church and village community.
Answer: the answer is Benjamin Harrison
Congress made an agreement that slaves could stay for a certain amount of time then once that time was up they put a law in the constitution talking abut the band on slavery