1. In 1910, Las Vegas was officially incorporated as a city in Nevada. The city was established as a railroad town and experienced rapid growth in the early 20th century due to the construction of the Hoover Dam and legalization of gambling.

2. In 1951, the Nevada Test Site, located about 65 miles northwest of Las Vegas, hosted its first nuclear weapons test. The site was established by the federal government in 1950 to conduct nuclear weapons tests and research, and over 1,000 tests were conducted there until the site was decommissioned in 1992.

3. In 1983, the MGM Grand Hotel and Casino in Las Vegas suffered a catastrophic fire that resulted in 85 deaths and over 700 injuries. The fire started in a deli and quickly spread through the casino due to a lack of fire sprinklers and other safety measures. The tragedy led to major changes in fire safety regulations in Nevada and across the country.

4. In 1999, 12 students and one teacher were killed in a shooting at Columbine High School in Colorado. The incident had a profound impact on school safety measures in Nevada and throughout the country, leading to increased security measures and active shooter drills.

5. In 2018, the legalization of recreational marijuana went into effect in Nevada. Adults over the age of 21 can purchase and possess up to one ounce of marijuana for personal use, and the state has collected millions of dollars in tax revenue from the industry in the years since legalization.