Thursday, July 31, 2025

History for July 31

History for July 31 - On-This-Day.com 
Milton Friedman 1912 - Economist
  • 1790 - The first U.S. patent was issued to Samuel Hopkins for his process for making potash and pearl ashes. The substance was used in fertilizer.
  • 1928 - MGM’s Leo the lion roared for the first time. He introduced MGM’s first talking picture, "White Shadows on the South Seas."
  • 1964 - The American space probe Ranger 7 transmitted pictures of the moon's surface.
  • 1971 - Men rode in a vehicle on the moon for the first time in a lunar rover vehicle (LRV).
  • 1991 - U.S. President George H.W. Bush and Soviet President Mikhail Gorbachev signed the Strategic Arms Reduction Treaty.

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