It stated that a slave would count for only three fifths of a person in congress
Well, the noblemen basically got, "passes", on taxes so everything else below them.
The plantations and farms of Virginia and the Southern colonies were the foundation of the economy of the New World. The colonies grew crops for export. As plantations grew the settlers needed more labor to work them. This was supplied by slaves from Africa.
The plantations of Sicily and the Madeira and Canary Islands were most like those of (C) Brazil and Caribbean.