1. In 1877, the Colorado War between the Utes and white settlers ended with the peaceful surrender of Ute leader Ouray. The war had lasted over a decade and resulted in the displacement of thousands of Ute people from their ancestral lands.

2. On August 29, 1901, the legendary outlaw Tom Horn was convicted of the murder of Willie Nickell in Colorado. Horn, a former army scout and hired gunman for ranchers, had been accused of killing Nickell in a dispute over sheep grazing rights. He was executed by hanging in November of that year.

3. In 1913, the town of Greeley was hit by a massive flood caused by heavy rains in the Rocky Mountains. The flood destroyed dozens of homes and businesses and killed eight people. It is still one of the worst natural disasters in Colorado history.

4. On August 29, 1970, a United Airlines DC-8 crashed into a mountain near Silver Plume, Colorado, killing all 31 people on board. The cause of the crash was determined to be pilot error.

5. In 2005, Hurricane Katrina brought heavy rains and flooding to Colorado, causing dozens of mudslides and road closures across the state. While Colorado is not typically affected by hurricanes, the remnants of the storm caused significant damage in the area.