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.
Oklahoma Panhandle
The Compromise of 1850 also established the eastern boundary of New Mexico Territory at the 103rd meridian, thus setting the western boundary of the strip. The Kansas-Nebraska Act of 1854 set the southern border of Kansas Territory as the 37th parallel. This became the northern boundary of "No Man's Land". When Kansas joined the Union in 1861, the western part of Kansas Territory was assigned to Colorado Territory, but did not change the boundary.