1889 Casper incorporated. Attribution: Wyoming State Historical Society.
1909 Nathaniel Seymour Thomas consecrated Episcopal Bishop of Wyoming, the first Episcopal Bishop with Wyoming solely as his territory.
1978 Special Session of the Legislature concludes. The Legislature had failed to adopt a budget during the regular budget session.
1987 The Parco historic district in Sinclair added to the National Register of Historic Places.
1995 USNS Laramie, a replenishment oiler, launched.