1. In 1903, the first automobile race in the state of Colorado was held on October 24th. The race, organized by the Denver Motor Club, took place in the Salt Lake Speedway and was won by Louis Chevrolet.

2. On October 24, 1929, the stock market crash that sparked the Great Depression began. The crash had far-reaching effects on the economy of Colorado and the nation as a whole, leading to substantial job losses and economic hardship for many of the state's residents.

3. In 1940, the first ski resort in Colorado opened on October 24th. The resort, located in the town of Winter Park, quickly became a popular destination for winter sports enthusiasts from across the state and beyond.

4. On October 24, 1972, the Colorado Rockies played their first NHL game. The team, which would later become the New Jersey Devils, moved to Denver from Kansas City to become the state's first NHL franchise.

5. In 2013, Colorado made history by becoming the first state in the nation to legalize recreational marijuana on October 24th. The decision had significant political and social implications, and has since led to a growing industry that has generated billions of dollars in revenue for the state.