On October 17, 1933 Albert Einstein and his wife Elsa moved to the US and Albert took up a position at the Institute for Advanced Study at Princeton, New Jersey.
In 1935 Einstein decided to stay in the US and became a citizen in 1940. His affiliation with the Institute for Advanced Study would last until his death in 1955.
Einstein moves to US October 17, 1933 from EDN web site
