1914 – Congress forms the Aviation Section, U.S. Signal Corps, giving official status to aircraft within the U.S. Army for the first time.
1925 – Adolf Hitler publishes Mein Kampf.
1969 – Senator Ted Kennedy crashes his car into a tidal basin at Chappaquiddick Island, Massachusetts, killing his passenger Mary Jo Kopechne.
1976 – Nadia Comaneci becomes the first person in Olympic Games history to score a perfect 10 in gymnastics at the 1976 Montreal Olympics.
2013 – Detroit, with up to $20 billion in debt, files for the largest municipal bankruptcy in U.S. history.