The "last teachings" were uttered in 1833, at the dispersion of the Black Hawk array.

The evidence

• “The moral lesson whose last teachings were uttered in 1833, at the dispersion of the Black Hawk array, were then so recent that the Indians were fain to give a wide berth to the pale faces, or to put on their blandest manners when they ventured among them. We know nothing of the stern difficulties of settlement encountered by those who carried their corn so far to mill, that the meal became exhausted in feeding the carrier before he could reach home.”

  1856-history-of-rock-county/06-beloit.md, PDF p. 64 / book p. 46

  Guernsey, Orrin, and Josiah F. Willard, editors. History of Rock County, and Transactions of the Rock County Agricultural Society and Mechanics' Institute. Janesville, Wis.: William M. Doty & Brother, 1856. Cornell University Library via the Internet Archive, archive.org/details/cu31924028871593.

  Grade A: Found on a page of one of our sources