1. On April 9, 1869, the first train arrived in Reno, Nevada, marking the completion of the transcontinental railroad. The railroad had a significant impact on Nevada's economy, as it allowed for easier transportation of goods and people.

2. In 1934, on April 9, the Nevada state legislature approved the legalization of gambling. The move was intended to generate revenue during the Great Depression, and it helped position Nevada as a destination for tourists seeking entertainment and gambling.

3. April 9, 1913, marked the founding of the University of Nevada, Reno. The university has grown significantly over the years and is now recognized as a top research institution, offering a wide range of undergraduate and graduate programs.

4. In 1984, on April 9, the MGM Grand Hotel and Casino in Las Vegas experienced a devastating fire. The fire claimed 85 lives and injured more than 700 people, making it one of the deadliest hotel fires in U.S. history.

5. On April 9, 2005, the Las Vegas Motor Speedway hosted its first-ever NASCAR Sprint Cup race. The event marked a major milestone for the speedway, which has since become a renowned destination for racing enthusiasts from around the world.