Kansas Territory
The Territory of Kansas was an organized incorporated territory of the United States that existed from May 30, 1854, until January 29, 1861, when the eastern portion of the territory was admitted to the Union as the state of Kansas.
Nebraska Territorial Legislature
In 1854 the Kansas-Nebraska Act created the Nebraska Territory, overturning the Missouri Compromise by allowing legislatures of the Nebraska and Kansas territories to determine whether to permit or abolish slavery. Slavery was a contentious issue for the territorial legislature between the creation of the Territory in 1854 and the outbreak of the American Civil War in 1861.