The Twenty-second Amendment to the United States Constitution, which established presidential term limits, was ratified on February 27, 1951.
Prior to the ratification of the Twenty-second Amendment, there were no formal term limits for the U.S. presidency. The tradition of a two-term limit was established by George Washington, but this was not legally binding.
FDR died in 1945. The entire thing is false propaganda rage bait.
A Social Democrat believes in a mixed capitalist economy, with strong social welfare to support the people. They aim to achieve this reform from within the democratic system of governance.
A Democratic Socialist is similar but with some added much more Socialist leanings. They believe in social ownership, a socialist economy, worker/public ownership of production means. Democratic control of the workplace. And lastly some Dem Soc's believe in a revolutionary approach to change rather than working from within. A "Throw it all out and start over" approach if you will.