|On October 1st, 1940, Albert Einstein was sworn in as a United States citizen in Trenton, New Jersey.|
A few other notable immigrants and when they became US Citizens ...
- Comedic icon Bob Hope in 1920 from England
- Physicist Enrico Fermi in 1944 from Italy
- Holocaust survivor Elie Weisel in 1957 from Transylvania
- Yahoo! co-founder Jerry Yang in 1978 from Taiwan
Anyone notable that you might add to the list?