Where are the list of presidents?
Settlement societies were divided into groups according to the value of the crops they raised.
Missouri Compromise admitted the zone of Maine, the northern locale of what was then Massachusetts, into the Union as a Free State.
This was done to adjust the quantity of "slave states" and "free states." This happened because of a compromise about slavery in Missouri, and in the federal regions of the American west.
Some Caribbean islands are coral islands formed from shells and marine animals skeletons.
These islands belong in the older group of Caribbean islands. Aruba, Bonaire, Curacao, Barbuda, Antigua etc. belong to this group. They practically represent a low laying plateaus composed of billions, if not trillions, of shells and marine animals skeletons that are accumulated on the ocean floor.