On this day 75 years ago, Albert Einstein fled Nazi Germany for good, moving to the United States. He later became an American citizen and he remained in the United States for the rest of his life.
Einstein had won the Nobel Prize in Physics in 1921 and was respected the world over. In January 1933, Adolf Hitler became Chancellor of Germany and very quickly legalized professional discrimination and persecution of Jews. Einstein, realizing the danger, left Germany forever.
Prominent German physicists, led by Einstein's fellow Nobel Prize winners Philipp Lenard and Johannes Stark, initiated the Deutsche Physik (German physics) movement to discredit Einstein's work as Judische Physik (Jewish Physics).
We've commented before on Einstein's legacy.
(image credit: Ferdinand Schmutzer, wikipedia.com)