1. In 1917, the Bisbee Deportation occurred, where approximately 1,200 striking miners and their supporters were illegally rounded up by local authorities and deported from Bisbee, Arizona to New Mexico. This event is regarded as one of the largest vigilante actions in American history.

2. On June 29, 1952, the Safford School District v. Redding case began, in which a 13-year-old girl was strip-searched at school to look for prescription-strength ibuprofen. The Supreme Court later ruled in her favor, stating that the search violated her Fourth Amendment rights.

3. June 29, 1976 marked the beginning of the United States Bicentennial celebration in Arizona. Events such as parades and historical reenactments occurred throughout the state throughout the year.

4. The Arizona Diamondbacks played their first game at Bank One Ballpark (now Chase Field) on June 29, 1998, against the Colorado Rockies. The Diamondbacks won the game 9-2.

5. On June 29, 2021, Arizona Governor Doug Ducey signed a bill into law that prohibits private funding of election administration in an effort to prevent any perceived interference or bias in the electoral process. Critics argue that this will limit election resources in the state, particularly for voting access in marginalized communities.