Albert Einstein is born in Ulm, Germany. As a theoretical physicist, Albert Einstein will create the general and special theories of relativity, a revolutionary development that paves the way for all the rest of modern physics and quite a bit of modern technology. For this he will receive the 1921 Nobel Prize in physics.
When Adolf Hitler comes to power, Einstein is visiting the United States and refuse to return home to Berlin where teaches at the Prussian Academy of Sciences. Einstein's own ideas come to be denounced in Nazi Germany as "Jewish physics," thus helping retard the development of Nazi science and technology.