1947 – The Roswell incident, the (supposed) crash of an alien spaceship near Roswell in New Mexico.
1981 – U.S. President Ronald Reagan appoints Sandra Day O'Connor to become the first female member of the Supreme Court of the United States.
1983 – Samantha Smith, a U.S. schoolgirl, flies to the Soviet Union at the invitation of Secretary General Yuri Andropov.
2005 – A series of four explosions occurs on London's transport system killing 56 people including four suicide bombers and injuring over 700 others.
