1879 Little Wolf surrenders to cavalry commanded by Cpt. W. P. Clark. Little Wolf had fought in many significant Plains Indians battles including, it is believed, the Fetterman Fight.
1891 An opium raid was conducted in Newcastle. Attribution: Wyoming State Historical Society.
1909 A well near Byron came in as a gusher. Attribution: Wyoming State Historical Society.
1915 Arminto Wyoming incorporated. Arminto was a major sheep shipping point in the 20th Century and, at one time, more sheep were shipped from its stockyards, where they were loaded on trains, than any other place in the world.
Today, with the decline in the American sheep industry, Arminto is nearly a ghost town, with just a few remaining residents. Here's a scene from just outside of the town. The town's once busy railhead is now just a rail crossing.
1916 The Punitive Expedition: Casper Daily Press, March 25, 1916.