1. The Wyoming State Capitol Building was completed on February 27, 1890. This magnificent building, located in Cheyenne, is one of the most iconic landmarks in Wyoming. It was built at a cost of $150,000 and has been the seat of Wyoming government ever since.

2. In 1868, on February 27, the United States Congress passed an act creating the Wyoming Territory. This act officially recognized the region as a separate political entity with its own territorial government. The territory eventually became the 44th state in the Union in 1890.

3. On February 27, 1970, a magnitude 6.5 earthquake struck the Madison Range in southwestern Montana. The earthquake was felt throughout western Wyoming and caused minor damage in Yellowstone National Park. It is the largest earthquake ever recorded in the Yellowstone area.

4. On February 27, 1989, the Upper Green River Valley of western Wyoming experienced a devastating flood. Warm temperatures caused heavy snowmelt, which combined with rain to cause the Green River to overflow its banks. Many homes and businesses were damaged or destroyed, and several people lost their lives.

5. On February 27, 1998, the Wyoming House of Representatives passed a bill to make bison the official state mammal. The bill was signed into law by Governor Jim Geringer later that year. Bison are an important symbol of Wyoming's heritage and represent the state's commitment to preserving its wild places and natural resources.