The Taino people were known to be one of the dominant, indigenous groups in many of the Caribbean islands including most of Trindad, Cuba, Jamaica. Majority were believed to have died off or extinct by the 1500s due to infectious diseases such as the 1519 smallpox epidemic, warfare and brutal enslavements by the Spanish colonists.
Monroe Doctrine and Roosevelt Corollary--the Monroe Doctrine first set the policy that the western hemisphere was closed to colonization. The Roosevelt Corollary took it a step further by providing military behind the policy.
Following the independence movement in the US and throughout Latin America, the US wanted to protect the area from future colonization. The Monroe Doctrine made the statement and then 80 years later the Roosevelt Corollary enforced the doctrine with our navy and army force.
Five Score Years Ago Is more appropriate because it is another way of saying 100 years ago and 1863.He repeats one hundred years later to let you know that this is after four score years ago.