in 1604
German astronomer Johannes Kepler observes a supernova in the constellation Ophiuchus.
Supernova 1604, also known as Kepler's Supernova, Kepler's Nova or Kepler's Star, was a supernova that occurred in the Milky Way, in the constellation Ophiuchus. As of September 2011, it is the last supernova to have been unquestionably observed in our own galaxy, occurring no farther than 6 kiloparsecs or about 20,000 light-years from Earth. Visible to the naked eye, it was brighter at its peak than any other star in the night sky, and all the planets (other than Venus), with apparent magnitude −2.5. It was visible during the day for over three weeks.
in 1933

Accepting U.S. citizenship, 1940
Albert Einstein flees Nazi Germany and moves to the United States.
He was visiting the United States when Adolf Hitler came to power in 1933, and did not go back to Germany, where he had been a professor at the Berlin Academy of Sciences. He settled in the U.S., becoming a citizen in 1940. On the eve of World War II, he helped alert President Franklin D. Roosevelt that Germany might be developing an atomic weapon, and recommended that the U.S. begin similar research; this eventually led to what would become the Manhattan Project.
Births
in 1915
Arthur Asher Miller was an American playwright and essayist. He was a prominent figure in American theatre, writing dramas that include plays such as All My Sons (1947), Death of a Salesman (1949), The Crucible (1953), and A View from the Bridge (one-act, 1955; revised two-act, 1956).

in 1920
Edward Montgomery Clift was an American film and stage actor. The New York Times’ obituary noted his portrayal of "moody, sensitive young men". Clift received four Academy Award nominations during his career, three for Best Actor and one for Best Supporting Actor.