How many years were Americans not legally allowed to travel to Cuba?
During the early 1960s, the relationship between the United States and Cuba had soured. Relationships broke down completely in 1960 when Fidel Castro signed a trade treaty with the Soviet Union and U.S. President Dwight D. Eisenhower responded by assembling a group of Cuban exiles to overthrow the government. The U.S. officially broke ties with Cuba on January 3, 1961. In July 2015, the two nations began to find more common ground and travel restrictions were eased. Source: History