1. On December 3, 1854, a group of Mormon pioneers led by Orson Hyde arrived in Carson Valley, Nevada, and established the town of Genoa. This was the first permanent settlement in present-day Nevada.

2. In 1867, a fire broke out in Virginia City, Nevada, destroying much of the city's business district. The fire started on December 3 and burned for two days, ultimately causing over $5 million in damages.

3. On December 3, 1922, the New York Giants played the Chicago Bears in the first-ever professional football game held in Nevada. The game was held at Moana Stadium in Reno and ended in a 0-0 tie.

4. December 3, 1946, marked the opening of the Flamingo Hotel and Casino on the Las Vegas Strip. The Flamingo was the first luxury hotel and casino on the strip, and its opening is considered a significant event in the history of Las Vegas.

5. On December 3, 1999, the MGM Grand Hotel and Casino in Las Vegas was the site of one of the deadliest high-rise fires in United States history. The fire broke out in the early morning hours and resulted in 87 deaths and over 700 injuries. The tragedy led to significant changes in building codes and fire safety regulations for high-rise buildings.