The Oregon Territory existed from 1848 to 1859. The territory encompassed present-day Oregon, Washington, and Idaho, as well as parts of what became Wyoming and Montana. In 1853, the northern half of the territory was split, becoming the Washington Territory. The Oregon Territory then encompassed present-day Oregon, the southern half of Idaho, and portions of Montana and Wyoming. The Sketch Map depicts the Oregon Territory as it was redefined in 1853. Multiple Indian Tribes were native to these lands, and their territories were depicted on this map. The Nez Perce tribe or the Nimiipuu people historically inhabited the lands in what is now Washington, Oregon, Montana, and Idaho. The Bannock tribe or Northern Paiute traditionally inhabited the lands of present-day Oregon, Nevada, Wyoming, and Idaho. The Maidu people, nicknamed “Root Digger” or “Digger” Indians by settlers, are historically from lands located in present-day northern California. “Maidu” means “man” in their language. They lived off a diet of acorns and edible roots, hence their nickname. The Klamath Indians consist of three tribes: the Klamath, Modoc, and Yahooskin tribes. These tribes are federally recognized as the “Klamath Tribes.” The Flathead Indians refer to the Confederated Salish and Kootenai Tribes located on the Flathead Reservation. Their nickname comes from the practice of artificial cranial deformation of some groups within the tribes. The Cayuse tribe traditionally inhabited the lands of present-day Oregon. The Umpqua Indians refer to several groups: the Kuitsh, the Etnemitane, and the Cow Creek Band. These tribes historically lived in present-day Oregon. Similar to the Umpqua Indians, the Rogue River Indians are made up of several tribal groups, including the Upper Coquille, Shasta Costa, Tututni, and Shasta Tribes, along with many others. The tribes were split into the Tribes of Siletz and Tribes of the Grand Ronde after the Rogue River Wars in 1856.