Wyoming’s Grand Teton National Park was established after being signed off by President Calvin Coolidge.
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A gay student, Matthew Shepard, was brutally beaten and left to die in Wyoming, US.
The first-ever American football game played at night occurred in a contest between Wyoming Seminary and Mansfield State Normal.
J.C. Penney's opened their first store in Kemmerer, Wyoming.
President Coolidge signed a bill authorizing The Boulder Canyon Project Act, which allowed for the construction of what is known today as the Hoover Dam.
A Woman casts her Vote in the US for the first time.
