1. Battle of Pyramid Lake: On June 3, 1860, a significant battle took place between the Paiute and the U.S. Army in what is now known as the Battle of Pyramid Lake. The Paiute successfully repelled the U.S. Army, resulting in one of the biggest Native American victories in the history of the American West.

2. Hoover Dam Groundbreaking: On June 3, 1930, groundbreaking for the Hoover Dam was held in Nevada. The dam, which is located on the border of Arizona and Nevada, is still considered one of the greatest engineering feats of the modern era.

3. The Las Vegas Strip: On June 3, 1941, the El Rancho Vegas Hotel and Casino opened on what is now known as the Las Vegas Strip. This was the first of many hotels and casinos to be built in the area, and the Las Vegas Strip quickly became one of the most famous destinations in the world.

4. Eruption of Mount St. Helens: On June 3, 1980, the eruption of Mount St. Helens in Washington State had a significant impact on Nevada. The ash that was released during the eruption caused significant damage to crops and livestock in the state, and created an eerie darkness that lasted for several days.

5. First Woman to Graduate from UNLV: On June 3, 1958, Theresa Szabo became the first woman to graduate from the University of Nevada, Las Vegas (UNLV). This was a significant achievement for both Szabo and UNLV, and paved the way for generations of women to pursue higher education in Nevada.