• 1856-Russia signs Peace of Paris, ending the Crimean War
  • 1867 -US buys Alaska from Russia for $7,200,000
  • 1922-KGY-AM in Olympia WA begins radio transmissions
  • 1922-WWL-AM in New Orleans LA begins radio transmissions
  • 1945 USSR invades Austria
  • 1945 – World War II: a defecting German pilot delivers a Messerschmitt Me 262A-1 to Americans.
  • 1950 – Phtotransistor invention announced
  • 1953 – Albert Einstein announces revised unified field theory
  • 1972-North Vietnamese troops enter South Vietnam