1. In 1902, the Western Federation of Miners called for a boycott of all Colorado mines in response to the Colorado Labor Wars. The wars were a series of violent clashes between striking miners and the Colorado National Guard and mine owners, resulting in several deaths and the infamous Ludlow Massacre.

2. In 1951, the city of Denver played host to a parade celebrating the 100th anniversary of the discovery of gold in Colorado. The parade featured elaborate floats, marching bands, and historical reenactors, and attracted tens of thousands of spectators.

3. In 1972, the Colorado State Fairgrounds in Pueblo suffered a devastating fire that destroyed six buildings and caused over $1 million in damage. The fairgrounds were rebuilt over the course of the next several years and remain a popular destination for festivals and events to this day.

4. In 1993, the Denver Nuggets made a big splash in the NBA offseason by signing flashy point guard Mahmoud Abdul-Rauf to a five-year, $18.5 million contract. Abdul-Rauf would go on to have several productive seasons with the Nuggets, although he is perhaps best remembered for refusing to stand for the national anthem due to his religious beliefs.

5. In 2016, Colorado native and Olympic swimmer Missy Franklin announced her retirement from competitive swimming at the age of 21. Franklin had won four gold medals and a bronze at the 2012 Olympics in London, but struggled to recapture that success at the 2016 Games in Rio de Janeiro. She remains one of the most accomplished swimmers in Colorado and American history.