1. In 1908, the town of Longmont experienced a devastating tornado on March 10, which killed five people and caused considerable damage to the town’s infrastructure.

2. The Colorado Avalanche played their first NHL game on March 10, 1996, against the Detroit Red Wings. Although they lost, this game marked the first step in establishing the Avalanche as a respected hockey franchise.

3. On March 10, 1934, the U.S. government sent troops to break up the “Memorial Day Massacre” in South Chicago, where striking steelworkers clashed with police, leaving ten people dead and 80 injured.

4. In 1876, the state of Colorado adopted its official flag on March 10. The flag features a blue field with a circular red "C" in the center, which surrounds a gold disc.

5. March 10, 1997, marks the beginning of the “Buffalo Creek Fire” in Colorado, which burned through 11,000 acres and destroyed 22 homes. The wildfire was sparked by humans and is considered one of the most devastating in the state’s history.