1. In 1930, the first Boulder Dam Bridge was completed. This bridge was an engineering marvel at the time, as it was the highest and longest single-span concrete arch bridge in the world.

2. On April 6, 1961, President John F. Kennedy signed the Nevada Southern University Bill, which authorized the creation of a new state college in Las Vegas. This college eventually became the University of Nevada, Las Vegas.

3. In 1982, the Clark County Government Center was dedicated in downtown Las Vegas. This complex houses the offices of the county's various elected officials, as well as a number of other government agencies.

4. The Reno Aces, a minor league baseball team, played their first home game at Greater Nevada Field on April 6, 2009. This stadium is now home to a number of other sports teams, as well as concerts and other events.

5. On April 6, 2019, the Nevada Legislature passed a bill that would make the state the first in the country to give same-sex couples the right to marry. This law went into effect on May 16, 2019, and has been celebrated as a major milestone in the fight for LGBTQ rights.