1. On June 29, 1872, the first passenger train arrived in Denver, marking the city's connection to the Transcontinental Railroad. The train was met with great excitement and celebrations, as the new rail link opened up opportunities for trade, commerce, and settlement in the region.

2. June 29, 1906, saw the completion of the Moffat Tunnel, a railroad tunnel through the Rocky Mountains that connected Denver to the Pacific coast. The tunnel was a major engineering feat, taking six years to complete, and it remained in use until 1997.

3. In 1917, on June 29th, the U.S. Army officially established Fort Carson outside of Colorado Springs. The base has played a key role in several military operations over the years and is home to the 4th Infantry Division and other units.

4. On June 29, 1994, the Colorado Rockies hosted the first-ever Major League Baseball All-Star Game played in Denver. More than 51,000 fans packed Coors Field to watch stars like Tony Gwynn, Ken Griffey Jr., and Ozzie Smith compete in the midsummer classic.

5. Finally, on June 29, 2012, one of the worst wildfires in Colorado's history broke out near Colorado Springs. The Waldo Canyon Fire burned more than 18,000 acres and destroyed over 340 homes, causing millions of dollars in damage. The fire served as a stark reminder of the danger of wildfires in the state, and the need for ongoing efforts to prevent and prepare for such disasters.