On what date did Iowa officially become a state?

Iowa officially became a state on December 28, 1846. This date marks the moment when Iowa was admitted to the Union as the 29th state, following a period of territorial status. The transition from territory to state was a significant milestone in Iowa's history, reflecting the growth and development of the region during the westward expansion of the United States.

This admission date is important as it solidified Iowa's governance and allowed for representation in Congress. Understanding these historical dates can provide insight into the broader context of statehood and the development of the American landscape during the mid-19th century.