What two states were created from the Dakota Territory?

North Dakota and South Dakota were both created from the Dakota Territory, which was originally established in 1861. When the U.S. government decided to divide the Dakota Territory into two separate states, it did so largely due to the challenges of governance over such a large area and to accommodate growing populations in different regions. This division was formalized with the admission of both states into the Union on November 2, 1889. The simultaneous admission of North Dakota and South Dakota makes them unique, as they were the first states admitted together without being divided at a single time.

The other options mentioned do not reflect the historical context correctly. Montana and Wyoming were formed from different territories that were distinct from the Dakota Territory, while Nebraska was also a separate territory with no direct historical connection to the Dakota Territory's division. Thus, North Dakota and South Dakota represent the accurate pair of states formed from the Dakota Territory.