1848 John Fremont moved out from near Westport, Missouri, on his fourth Western expedition.
1867 Ft. Caspar, Wyoming abandoned. It would be subsequently burned by the Indians. Attribution: On This Day.
1890 Troop A, 1st Cavalry Rgt, relieved from assignment to Yellowstone National Park The Army patrolled the park until 1915. Attribution: Wyoming State Historical Society.
1915 US recognized General Venustiano Carranza as the president of Mexico, and imposed an embargo on the shipment of arms to all Mexican territories except those controlled by Carranza. Ironically, Carranza, who was a strongly leftist political theorist, held the US in disdain.
1944 A bomber from the Casper Air Base crashed killing three crewmembers. Attribution: Wyoming State Historical Society.
1951 Harry S. Truman signed an act formally ending the state of war with Germany.
1996 A 4.2 earthquake occurred 85 miles from Gillette. Attribution: On This Day.