1. In 1848, American troops marched into Tucson, Arizona during the Mexican-American War. This marked the end of Mexican control in Arizona and the beginning of American influence in the region.

2. On December 27, 1865, the Overland Mail Company began operating a stagecoach service from San Antonio, Texas to San Diego, California. This route passed through Arizona and helped to connect the state with the rest of the country.

3. In 1932, the town of Superior, Arizona was hit by a massive flood that killed several people and caused extensive damage. The flood was caused by heavy rainfall that overwhelmed the town's drainage system.

4. December 27, 1941 marks the day when the USS Arizona Memorial was dedicated in Pearl Harbor, Hawaii. The memorial pays tribute to the sailors and marines who died onboard the USS Arizona during the Japanese attack on Pearl Harbor on December 7, 1941.

5. In 1994, the Arizona Cardinals (then the Phoenix Cardinals) played in their first-ever playoff game. They faced off against the Green Bay Packers at Lambeau Field and lost 16-12. Although they lost the game, it was a significant milestone for the Cardinals franchise.