The Eisenhower administration maintained good relations with Castro's Cuba, and tensions did not develop until John Kennedy enlisted the CIA to try to overthrow Castro. The statement that is being presented is FALSE. Eisenhower administrations didn't maintain good relations with Castro's Cuba.
The Underground Railroad was the name of the escape routes used by slaves to escape the South and flee to the North. It was a network of special routes and safe houses that were used by both slaves and abolitionists who were sympathetic to their cause of escaping slavery. It started in the late 1700's and ended after the abolition of slavery. Canada was a popular destination, as slavery was prohibited their and had a longer border for easier access.