John Fitzgerald Kennedy, or JFK, was the 35th president of the United States. He was sworn in on Jan. 20, 1961, and was killed in Dallas on Nov. 22, 1963, barely serving 1,000 days as president.
As of November 2014, Kennedy is the youngest person elected president and also the youngest president to die in office. He dealt with issues including racial discrimination and Cuban conflicts. He established the Peace Corps and aimed to put a man on the moon before decade's end.
The 34th president was Dwight Eisenhower, who served from 1953 to 1961. The 36th president was Lyndon Baines Johnson, or LBJ. He served from 1963 to 1969.