Which state was formed at the same time as North Dakota?

The formation of North Dakota in 1889 coincided with the establishment of South Dakota as a state. Both were part of a larger area that was organized as Dakota Territory before being split into two separate states. This splitting was primarily driven by the need for political representation and administrative efficiency as the population in the region grew.

Understanding this significant moment in history highlights the simultaneous statehood that North and South Dakota achieved, reflecting broader trends in the settlement and governance of the American West during the late 19th century. The other states mentioned—Montana, Wyoming, and Idaho—achieved statehood at different times; Montana and Wyoming became states shortly after North and South Dakota, but not concurrently, while Idaho was formed a bit later, in 1890. Thus, South Dakota is the only state that was officially recognized alongside North Dakota.