1. On August 4, 1914, the first issue of the Bisbee Daily Review was published, serving Bisbee and the surrounding areas until 1928 when it merged with another newspaper.

2. In 1987, a severe flash flood hit the town of Payson on August 4th, resulting in 9 deaths and causing over $160 million in damages. The event is still remembered as one of the worst natural disasters in Arizona history.

3. On August 4, 1917, the city of Winslow celebrated the opening of its new $25,000 library building which had been donated by Andrew Carnegie. The library operated until the 1970s when it was replaced by a new facility.

4. The first issue of the Tucson Citizen was printed on August 4, 1870, making it one of the oldest continuously operating newspapers in Arizona. The paper ceased publication in 2009 due to declining circulation and financial difficulties.

5. August 4, 1861, is significant as it was the date that the Union Army attacked Confederate forces stationed at the Picacho Pass, marking the first Civil War engagement in the Arizona Territory. The Confederates won the battle, but it had little strategic importance in the overall war effort.