1. In 1983, the US Supreme Court overturned a landmark Arizona case. The case involved Ernest Miranda, who was arrested for rape and kidnapping in 1963, and whose lack of understanding of his rights led to the creation of the "Miranda warning".

2. June 24, 1910 saw the dedication of the first permanent structure for the Grand Canyon National Park. Built using local limestone and quarried stone, it still stands as an example of rustic architecture.

3. On June 24, 1668, Padre Eusebio Kino founded the Mission San Cosme y Damian de Tucson, one of the oldest structures in Arizona. He also established missions in other parts of Arizona, which were integral in establishing relationships between the Spanish and indigenous peoples.

4. In 1949, the first controlled nuclear reaction was achieved in Arizona, at the Snap1 which was located 12 miles north-west of downtown Phoenix. This milestone paved the way for significant advances in nuclear technology.

5. June 24, 1864 saw the Battle of Picacho Pass, in which Confederate soldiers attempted to capture a Union patrol as they crossed the pass. Although the Confederates were initially successful, they eventually lost the battle, which was one of the few fought in Arizona during the Civil War.