In what year did Arizona officially become a state?

Arizona officially became a state on February 14, 1912. This date is significant in U.S. history because it marked the admission of the 48th state into the Union, completing the contiguous United States as we recognize it today. The journey toward statehood for Arizona was lengthy, beginning with its designation as a territory in 1863, and it involved several political and legislative processes, including the drafting of a state constitution and gaining approval from Congress.

Focusing on the other options helps to clarify Arizona's path to statehood. The year 1900 is far too early, as Arizona was still a U.S. territory at that time. The years 1920 and 1930 are also incorrect, as they fall after Arizona had already been granted statehood. Understanding the correct year of 1912 provides insight into this significant event in Arizona's history and the broader development of the United States during that era.