1. The Rose Hill Volunteer Fire Department was founded on November 5, 1947, in Commerce City. It was formed after a devastating fire in the community, which made the local residents realize the need for a fire department to protect their property and lives.

2. On November 5, 1998, Colorado voters approved Amendment 20, which made medical cannabis legal in the state. Colorado thus became the first state to allow patients with debilitating medical conditions to use cannabis with a doctor's recommendation.

3. Colorado's first telegraph line was established between Denver and Boulder on November 5, 1863, allowing for faster communication and greater connectivity between the two cities. The telegraph also facilitated the growth of the state's mining industry, as it allowed for more efficient transportation of resources.

4. The Colorado Aviation Historical Society was founded on November 5, 1966, with the mission of preserving and promoting aviation history in the state. The organization has documented and preserved various aspects of aviation history, including the founding and growth of the state's airports.

5. The Fort Collins Museum and Discovery Science Center was founded on November 5, 1987. The center is dedicated to showcasing the region's cultural, historical, and scientific heritage, and features over 10,000 artifacts and interactive exhibits, making it a popular destination for tourists and locals alike.