1815 British government opens Canadian commerce to US citizens following the end of the War of 1812.
1843 John C. Fremont again departs from St. Louis to explore the West, having only recently returned from his first western expedition.
1876 Crook's forces depart Ft. Fetterman for the second time in 1876, for a summer campaign against the Sioux.
1878 John M. Thayer concludes his term as Territorial Governor. Thayer was originally from Massachusetts but had relocated to eastern Nebraska to farm and practice law. He served in the Civil War and was brevetted to the rank of Major General. He was appointed Territorial Governor by President Grant, and returned to Nebraska after his term concluded.
1878 John W. Hoyt took office as Territorial Governor. Hoyt was a polymath who had a law degree and a medical degree, had taught chemistry, and who was interested in agriculture. He was the University of Wyoming's first president.
1888 First Wyoming National Guard unit, the Laramie Grays, organized.
1890 The Wyoming's first Federally recognized National Guard unit formed, Company A, 1st Wyoming Regiment, the Laramie Grays. The Laramie Grays are a short lived cavalry unit. In spite of the absolute dependance on the horse for the economy of the region, Wyoming National Guard units were generally infantry, and then artillery, up until after World War One.
1891 The cemetery for Ft. Bridger relocated to Ft. McPherson Nebraska.
1903 President Theodore Roosevelt made a whistle stop in Evanstson.
1904 A Natrona County boy was shot while herding sheep at Alkali Gulch. Attribution: Wyoming State Historical Society.
1912 John W. Hoyt, former Territorial Governor and first President of the University of Wyoming, died in Washington D. C.
1919 A new city hall is opened in Casper. The building is no longer there. Attribution: Wyoming State Historical Society.
1943 “Rosie the Riveter” appeared on the cover of “The Saturday Evening Post" in an illustration by Norman Rockwell. The concept of Rosie the Riveter would go on to virtually define the war industry employed working woman of World War Two, and would later be the subject of a very famous war poster, by another artist. The image has gone on to later somewhat define feminism, but the image it has come to portray is inaccurate. In truth, women were employed in war industries during World War One as well, and in some ways female labor during World War One was not only every bit as important as it was during World War Two, but more important, as women took over many roles in agriculture normally occupied by men. The entire concept, therefore, that World War Two caused women to enter the workplace is incorrect, as the same forces were at work during World War One.
1943 Meat and cheese began to be rationed in US.
1971 A category 2 tornado injured three people in Casper. Attribution: On This Day.
1984 A 5.0 magnitude earthquake occurred 23 miles from Gillette. Attribution: On This Day.