1. In 1887, Cheyenne became Wyoming's first city to install electric streetlights. The streetlights made it easier for Cheyenne's residents to see the city at night and provided more safety for travelers and pedestrians.

2. September 12, 1907, was the day of Wyoming's first Labor Day parade. On that day, workers marched through the streets of Sheridan to celebrate the contributions of American workers.

3. September 12, 1919, was the day the University of Wyoming College of Law was founded. The law school has since grown into one of the state's most prestigious educational institutions and has produced many successful attorneys and judges.

4. In 1970, the Wyoming State Board of Agriculture approved the creation of the Wyoming Hands-On Science Center. The Science Center is still in operation today, giving students and visitors a hands-on experience with science and technology.

5. On September 12, 2012, the High Park fire in Colorado jumped the Wyoming border, causing the evacuation of hundreds of Wyoming residents. The fire burned over 87,000 acres and destroyed over 250 homes, leaving many families displaced and devastated.