1. In 1844, the Bent's Fort Treaty was signed on May 24 between the United States government and several Native American tribes. The treaty established peace between the groups and allowed for safe passage through Native American lands.

2. On May 24, 1883, the Denver and Rio Grande Railroad Company completed their railway line, which connected Denver to Salt Lake City. The line played a crucial role in the development and growth of Colorado's mining industry.

3. In 1892, the Colorado State Capitol building was completed on May 24. The building stands at 272 feet tall and is adorned with a gold dome, making it one of the most notable landmarks in the state.

4. On May 24, 1976, a major wildfire broke out in the city of Boulder, burning more than 100 homes and causing millions of dollars in damages. The blaze, known as the "Flagstaff Fire," was finally contained on May 30.

5. In 2015, a rare meteorological event known as a "cloud tsunami" occurred over the city of Denver on May 24. The phenomenon, which is also known as a "roll cloud," is a type of low-level atmospheric wave that is typically associated with thunderstorms. Denver residents were treated to a spectacular display as the cloud rolled across the city's skyline.