The Pawnee are subject to continual raids…
August 1873 CE
On one such raid, on August 5, 1873, a Sioux war party of over a thousand warriors ambushes a Pawnee hunting party of three hundred and fifty men, women, and children.
The Pawnee had gained permission to leave the reservation and hunt buffalo.
About seventy Pawnee are killed in this attack, which occurs in a canyon in present-day Hitchcock County.
The site is known as Massacre Canyon.
Because of the ongoing hostilities with the Sioux and encroachment from American settlers to the south and east, the Pawnee will decide to leave their Nebraska reservation and settle on a new reservation in Indian Territory, located in what is today Oklahoma.