World-famous scientists were dismissed from their posts in Germany’s universities and research institutes if they were Jewish or had Jewish wives or were known critics of the Nazis. They included twenty past or future Nobel laureates, among them Albert Einstein, Gustav Hertz, Erwin Schrödinger, Max Born, Fritz Haber and Hans Krebs. Einstein, whose theory of relativity had revolutionized modern physics, had been based in Berlin for twenty years. On a visit to America in January and February 1933, he denounced from afar the brutal violence of the Nazis after the Reichstag fire.