1. Wyoming Territory was created on December 3, 1868, by the United States Congress. It was carved out of the Dakota, Utah, and Idaho territories and became the first government entity in the United States where women had the right to vote.

2. On December 3, 1878, a fierce snowstorm known as the "Big Die-Up" began in Wyoming, killing approximately 90% of the state's livestock. The storm lasted for two months, devastating the region's economy.

3. December 3, 1890, marked the day of the Wounded Knee Massacre, where nearly 300 Native American men, women, and children were killed by United States Army troops in South Dakota. Many of the victims were members of the Miniconjou, Hunkpapa, and Sihasapa tribes, who were resisting the forced assimilation policies of the US government.

4. The city of Cheyenne, Wyoming, was founded on December 3, 1867, as a strategic point on the Union Pacific Railroad. It became the capital of Wyoming Territory until Wyoming achieved statehood in 1890.

5. On December 3, 2007, the Wyoming Legislature passed legislation allowing for the creation of the state's first community college district. The Northern Wyoming Community College District serves four counties in northeastern Wyoming and has campuses in Sheridan, Gillette, and Buffalo.