Nazi Einstein

Point of Divergence
On March 14, 1879, Albert Einstein is born to a German family. However, instead of being born to a Jewish family like in our timeline, he is instead born to a protestant, white supremacist family. Years pass, with the timeline still being the same as with our own.

Rise of the Nazi Party in Germany
After the German defeat in WWII, Germany is reeling and the people are angry with the government. Adolf Hitler joins the German Worker's party, transforming it into the Nazi Party. The young Einstein, hearing Hitler's speeches, joins the Nazi Party on June 2, 1928 and quickly rises up the ranks. Despite the 1923 failed Bavarian coup, the Nazis still continue to rise in power. Einstein catches the attention of Hitler, who no longer considers nukes as "Jew science". Then, on August 2, 1934, Adolf Hitler gains complete control with the death of Hindenburg.

German Atomic Program and WWII
Soon after Hitler gains complete power, he authorizes Albert Einstein to start the nuclear program, called "the Berlin Project". As Einstein continues nuclear research, Hitler becomes more aggressive, annexing Austria on March 8, 1938 and Czechoslovakia on March 9, 1938. Then, against the pleading of Einstein to wait until the nuclear program is finished, Hitler invades Poland on September 1, 1939, starting WWII. At first, WWII goes the same way it did in our timeline. Then, on September 5, 1940, just 3 days after the beginning of the blitz, Einstein tests his finished product. Hitler orders one to be made as soon as possible, and the first atomic bomb was finished on December 17, 1940. Then, on January 1, 1941, the world changes forever. The first atomic bomb falls on London.