Franklin Delano Roosevelt. He married his cousin, was the United States President who pulled the United States out of the great depression and also, was the President, "Commander and Chief", during World War II. He also had polio which lead to him being in a wheel chair during most of his presidency. He is also the ONLY President to serve more than four terms in office. Also he gave his famous, "Infamy" speech which called on congress to declare war on the AXIS powers, two days after the attack on Pearl Harbor, December 7th, 1941.
Some eleven to twelve million Africans were forcibly carried to the Americas. Of those, roughly one-half million (or about 4.5 percent) were taken to mainland North America or what became the United States.