1. The Grand Junction-Moab stagecoach route was established on May 28, 1885. This route was crucial in connecting the two cities and transporting goods and people between them.

2. On May 28, 1896, Colorado Governor Albert W. McIntire signed a bill allowing women to practice law in the state. This made Colorado one of the first states to allow women to become lawyers.

3. The first-ever commercial airline flight in the United States took place on May 28, 1919, between Denver and Pueblo, Colorado. This flight was operated by the company now known as United Airlines.

4. A massive tornado hit the town of Windsor, Colorado, on May 28, 2008. The tornado caused significant damage, including the complete destruction of some homes and buildings. Fortunately, no one was killed from this natural disaster.

5. On May 28, 2014, a severe flood hit parts of Colorado, causing widespread damage and claiming the lives of ten people. This flood caused billions of dollars in damage and was one of the costliest natural disasters in Colorado's history.