1. In 1876, Colorado officially became a state on October 28th, becoming the 38th state to join the Union. The capital of Colorado is Denver, which was also founded in the year Colorado became a state.

2. On October 28, 1918, the first case of Spanish flu was reported in Denver, CO. The Spanish flu pandemic was the deadliest pandemic of the 20th century, with an estimated 50 million deaths worldwide.

3. In 1962, the Denver Broncos football team had their first-ever win as an American Football League team on October 28th, beating the Boston Patriots 13-10. The Broncos are now a part of the National Football League (NFL) and have won three Super Bowl championships.

4. The town of Ouray, Colorado, experienced a record-breaking snowfall on October 28, 1991, with over 50 inches of snow in just 24 hours. This remains the largest single-day snowfall ever recorded in the state of Colorado.

5. On October 28, 2009, Colorado’s first-ever medical marijuana dispensary opened in the town of Nederland. This was a result of the state passing a ballot initiative legalizing medical marijuana in 2000, becoming one of the first states to do so. Since then, Colorado has also legalized recreational marijuana.