1. In 1924, the town of Superior, Arizona was incorporated. Superior was a mining town located in Pinal County and was named for the high-grade copper ore found in the area.

2. On April 8, 1949, the Coconino National Forest was established in northern Arizona. The forest covers 1.8 million acres and includes famous landmarks such as the Grand Canyon and the San Francisco Peaks.

3. In 1971, actor Randy Stuart passed away in Beverly Hills, California. Although born in Iola, Kansas, Stuart spent much of her career in Hollywood and appeared in numerous films and television shows, including The Twilight Zone and The Outer Limits.

4. The Arizona State Legislature passed House Bill 2652 on April 8, 1981, which established the Arizona State Railroad Museum in the town of Williams. The museum features exhibits on the history of railroading in Arizona and includes a large collection of vintage locomotives and railcars.

5. On April 8, 2019, the United States Supreme Court heard oral arguments in the case of Herrera v. Wyoming, which centered on the treaty rights of Native American tribes. The case involved a member of the Crow Tribe who was charged with hunting elk outside the boundaries of the Crow Reservation in violation of state law.