Black Hawk prepared to re-assert his claims to the disputed territory; the 1856 history dates this to the spring, while the 1908 history gives the specific date of April 6.

The evidence

• “April 6, 1832, Black Hawk and his second in command, Neapope, with about 450 mounted warriors and fifty in canoes, with their squaws, children and belongings, crossed the Mississippi into Illinois near the mouth of Rock river and started up it. His avowed intention was to proceed to the village of the Indian prophet.”

  1908-brown-rock-county/03-black-hawk-war.md, Vol. 1, PDF p. 47 / book p. 38

  Brown, William Fiske, editor. Rock County, Wisconsin: A New History of Its Cities, Villages, Towns, Citizens and Varied Interests, from the Earliest Times, Up to Date. Chicago: C. F. Cooper & Co., 1908. 2 vols. archive.org/details/rockcountywiscon01brow, archive.org/details/rockcountywiscon02brow.

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