Lawrence, Kansas
Prior to Kansas Territory being established in May 1854, most of Douglas County was part of the Shawnee Indian Reservation (created in 1830). During this period, the Oregon Trail ran parallel to the Kansas River, roughly through the area where Lawrence would eventually be situated and a hill known then as "Hogback Ridge" (i.e., Mount Oread, which sits on the water divide separating the Kansas and Wakarusa River). This area was used as a landmark and an outlook by those on the trail. While this territory was technically unopened to settlement prior to 1854, there did exist a few "squatter settlements" in the area, especially just north of the Kansas River.
Kansas Territory
The first session of the legislature was held in Pawnee, Kansas (within the boundary of modern-day Fort Riley) at the request of Governor Reeder. The two-story stone building still stands and is open to the public as the First Territorial Capitol of Kansas. The building remained as the seat of the legislature for five days from July 2–6, 1855, then moved nearer Missouri to the Shawnee Methodist Mission.