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.
A+E Networks. On this day in 1940, Franklin Delano Roosevelt, who first took office in 1933 as Americaâs 32nd president, is nominated for an unprecedentedthird term. Roosevelt, a Democrat, would eventually be elected to a record four terms in office, the only U.S. president to serve more than two terms.his Day in History: 07/18/1940 - FDR Nominated for a 3rd Term. In a This Day in History video, learn that on July 18, 1986, the Titanic was finally seen under the sea. After sinking into the icy North Atlantic upon striking an iceberg, the Titanic hadn't been seen for seventy-four years.