The United States and Soviet Union both sign the START I Strategic Arms Reduction Treaty, the first to reduce (with verification) both countries' stockpiles. Date: July 31, 1991 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 1991 📅 On This Day (Today)

Space Shuttle program: Atlantis is launched on STS-46 to deploy the European Retrievable Carrier and the Tethered Satellite System. Date: July 31, 1992 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 1992 📅 On This Day (Today)

China General Aviation Flight 7552 crashes during takeoff from Nanjing Dajiaochang Airport, killing 108. Date: July 31, 1992 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 1992 📅 On This Day (Today)

Thai Airways International Flight 311 crashes into a mountain north of Kathmandu, Nepal killing all 113 people on board. Date: July 31, 1992 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 1992 📅 On This Day (Today)

The nation of Georgia joins the United Nations. Date: July 31, 1992 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 1992 📅 On This Day (Today)

FedEx Express Flight 14 crashes at Newark International Airport, injuring five. Date: July 31, 1997 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 1997 📅 On This Day (Today)

Discovery Program: Lunar Prospector: NASA intentionally crashes the spacecraft into the Moon, thus ending its mission to detect frozen water on the Moon's surface. Date: July 31, 1999 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 1999 📅 On This Day (Today)

Fidel Castro hands over power to his brother, Raúl. Date: July 31, 2006 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 2006 📅 On This Day (Today)

Operation Banner, the presence of the British Army in Northern Ireland, and the longest-running British Army operation ever, comes to an end. Date: July 31, 2007 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 2007 📅 On This Day (Today)

East Coast Jets Flight 81 crashes near Owatonna Degner Regional Airport in Owatonna, Minnesota, killing all eight people on board. Date: July 31, 2008 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 2008 📅 On This Day (Today)