1. On January 13, 1909, the Colorado state legislature authorized the establishment of a state park, which later became known as Estes Park. It is now one of the most popular destinations in the state, offering scenic views, hiking trails, and outdoor adventure activities.

2. In 1960, the Denver Broncos were formed as one of the original members of the American Football League (AFL). Since then, the Broncos have won three Super Bowl championships and have become an integral part of Colorado sports culture.

3. On January 13, 1879, the Colorado Silver Boom began with the discovery of rich silver ore in Leadville. Soon, thousands of miners and prospectors flooded the area, transforming the small town into a booming metropolis and one of the largest mining centers in the world.

4. In 1974, the Colorado State Patrol arrested serial killer Ted Bundy on I-70 near Vail. Bundy had committed a string of murders across the country and was eventually executed for his crimes.

5. On January 13, 1859, the first gold was discovered at the confluence of Clear Creek and the South Platte River, which led to the Pike's Peak Gold Rush. This event marked the beginning of a major migration of gold seekers to Colorado, transforming the territory into a state just two years later.