1. In 1867, the first issue of the Laramie Boomerang, Wyoming's oldest daily newspaper, was printed on December 17th. The Boomerang continues to serve the Laramie community to this day.

2. On December 17, 1929, Wyoming's first radio station, KFBC in Cheyenne, began broadcasting. The station was owned by the Cheyenne Tribune-Eagle newspaper and remained on the air until 1981.

3. In 1976, Wyoming Governor Ed Herschler signed the "Bison as Wyoming's Official Mammal" bill into law on December 17th. The American Bison is an important symbol of Wyoming's history and natural resources.

4. On December 17, 1984, a blizzard hit Wyoming, causing severe damage and loss of life. The storm, which lasted for three days, resulted in 16 deaths and caused millions of dollars in damage.

5. In 2014, Wyoming's first legal same-sex marriage was performed on December 17th. This was a landmark moment for the LGBTQ+ community in Wyoming, which had previously banned same-sex marriage until it was ruled unconstitutional by a federal court.