Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page South Coffeyville, Oklahoma:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

For millennia, the land now known as Oklahoma was inhabited by Native Americans.[citation needed] In the 17th century, white trappers first visiting the area found it occupied mostly by the Osage and Quawpaw tribes. In 1803, modern Oklahoma was secured by the United States as part of the Louisiana Purchase. In 1819, the Arkansas Territory was organized, then was split in 1824 and 1828. An 1828 treaty with the Cherokee Nation assigned the area of Nowata County to the Cherokees, who included it in 1856 in their newly created Cooweescoowee District. The Cherokees and the Delaware signed a treaty in 1867. In 1890, the area became part of the Oklahoma Territory. In 1907, Oklahoma became the 46th U.S. state and Nowata County was founded.