1864 Gold discovered near the location of present day Livingston, Montana
1869 Major John Wesley Powell's expedition arrived at the foot of the Grand Canyon, having left Green River on May 24. Attribution: On This Day.
1877 "Cantonment Reno" renamed Fort McKinney. Attribution: On This Day.
The location of the former Cantonment Reno.
1886 The first homicide in the new town of Lusk occurred. Attribution. Wyoming State Historical Society.
1890 First oil strike at the Salt Creek field. Attribution: Wyoming State Historical Society.
1898 James Judson Van Horn, former temporary commander of the Department of Colorado in Denver, commander of a regiment and infantry division at Camp Thomas, Georgia, and the first brigade, second division, Fifth Corps, at Tampa, Florida, died while on sick leave at Ft. D. A. Russell.
1916. A horse and rider were killed near Medicine Bow by lightening. Attribution: Wyoming State Historical Society.
1999 Leonard Frank "Fritz" Shumer died in Suamico Wisconsin. He had been head coach of the University of Wyoming Cowboys from 1971 to 1974 and defensive coordinator for the Green Bay Packers from 1994 to 1998.