Timeline Tuesday 1 October 1940

2nd Millennium › 20th Century › 1940s › 1940 › October 1940 › 1 October 1940

Tuesday 1 October 1940

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All times in UTC · Dashed edge = started before, or continues beyond, this day

Events on Tuesday 1 October 1940 1

1940 Becomes an American citizen Sworn in at Trenton, New Jersey Einstein, Margot and his secretary Helen Dukas took the oath on 1 October 1940. He kept his Swiss citizenship alongside it. The FBI had already opened a file on him that would run to 1,400 pages.

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