A switchback was used in mountainous territory to gain elevation. Basically, a train could run uphill in one direction through a switch and onto a stub ended track. The switch would be thrown and the train would then back up the next leg of the climb.
As the years went on, John F. Kennedy, a Democrat, served three terms (six years) in the House of Representatives, and in 1952 he was elected to the US Senate. Soon after being elected senator, John F. Kennedy, at 36 years of age, married 24 year-old Jacqueline Bouvier, a writer with the Washington Times-Herald. Unfortunately, early on in their marriage, Senator Kennedyâs back started to hurt again and he had two serious operations.
The last President to serve more than two terms was Franklin D. Roosevelt. Roosevelt served three full terms as President and was elected to a fourth term. Roosevelt died 83 days into his fourth term in office. Congress passed the Twenty-second Amendment on March 21, 1947. The required number of states ratified it in 1951.