1. In 1885, the Denver and Rio Grande Railroad completed construction on the Royal Gorge Bridge, a stunning suspension bridge that spans the Arkansas River. At the time, it was the highest bridge in the world, standing at 955 feet above the river. Today, it is still considered one of the most impressive feats of engineering ever accomplished.

2. On October 6, 1890, Colorado became the 22nd state to grant women the right to vote, a full 30 years before the 19th Amendment was ratified at the national level. Suffragettes like Elizabeth Ensley and Ellis Meredith led the charge for women's suffrage in Colorado, paving the way for equal voting rights across the country.

3. In 1910, Denver hosted its first-ever air show, featuring daring pilots performing aerial stunts in biplanes and monoplanes. The event was a huge success, drawing more than 50,000 spectators over the course of five days. Today, Denver is still an important hub for the aviation industry, with Denver International Airport ranking as one of the busiest airports in the world.

4. On October 6, 1927, the iconic Stanley Hotel opened its doors in Estes Park, Colorado. The hotel, which was famously the inspiration for Stephen King's "The Shining," has a long and storied history, with guests reporting ghostly encounters and supernatural phenomena. Today, it continues to draw tourists from around the world, offering guided ghost tours and other eerie experiences.

5. In 1986, the Colorado Rockies played their first home game at Mile High Stadium in Denver, marking the beginning of the team's inaugural season. The Rockies have since become a beloved part of Colorado's sports landscape, with millions of fans packing Coors Field each year to cheer on their favorite players.