1. The first transcontinental air mail service began in Utah on October 18, 1920. Pilots flew from New York to San Francisco with several stops along the way, including Salt Lake City, where the first mail was dropped off.

2. On October 18, 1963, a 2.9-magnitude earthquake struck the town of Monticello in southeastern Utah. While it may seem like a small quake, it was notable as one of the few earthquakes recorded in the region at the time.

3. In 1983, the first Utah Warrior Dash took place on October 18. The annual event is a 5K obstacle course race that has since become popular around the world.

4. Utah resident and Olympic athlete Noelle Pikus-Pace was born on October 18, 1982. She competed in skeleton at the 2006 and 2010 Winter Olympics, winning a silver medal in 2014.

5. On October 18, 1910, the town of Helper in central Utah was incorporated. Helper was an important coal-mining town during the early 20th century and was named for the "helper" engines that assisted trains in climbing the steep mountain grades in the area. Today, the town is a popular stop for visitors traveling through eastern Utah.