Wyoming
The area of present-day Wyoming was part of the Louisiana territory, controlled by France from 1682 until ceded to Spain in 1762, then returned to France in 1800 before being acquired by the United States through the Louisiana Purchase in 1803. The Union Pacific Railroad played a central role in the European colonization of the area. Wyoming became an organized incorporated U.S. territory on July 25, 1868, and was admitted to the Union as the 44th state on July 10, 1890.
Pre-contact era
There is evidence of prehistoric human habitation in the region known today as the U.S. state of Wyoming stretching back roughly 13,000 years. Stone projectile points associated with the Clovis, Folsom and Plano cultures have been discovered throughout Wyoming. Evidence from what is now Yellowstone National Park indicates the presence of vast continental trading networks since around 1,000 years ago.
Colonial history
France only controlled a small fraction of this area, most of which was inhabited by Native Americans; effectively, for the majority of the area, the United States bought the preemptive right to obtain Indian lands by treaty or by conquest, to the exclusion of other colonial powers.
France only controlled a small fraction of this area, most of which was inhabited by Native Americans; effectively, for the majority of the area, the claim was nominal over land predominantly inhabited by Native Americans.
France's failure to suppress a revolt in Saint-Domingue and prospect of renewed warfare with the United Kingdom prompted Napoleon to sell Louisiana to the United States.
The Louisiana Purchase included the area of Montana, Wyoming, and Colorado east of the Continental Divide. The western borders of the purchase were later settled by the 1819 Adams–Onís Treaty with Spain.
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State history content adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License. Historic sites data: National Register of Historic Places, National Park Service (public domain).
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