CSPAN3 Voices Of The Northern Plains Exhibit December 21, 2017
By just using the records that we have on the second floor, our research core, the archives themselves, and then also a Research Library of 40,000 volumes on the American West. Human habitation in the plains would date from certainly in this part of the country, from well before the current era. Most anthropologists north American Indians as far back as 10,000 to 12,000 years ago, plains culture. What you will see in this exhibit here is much more recent, perhaps about 1700, but it is still prec...
Source: archive.org