The fourth session of the Wisconsin legislature commenced.

The evidence

• “The fourth session of the legislature of the State commenced on the 8th of January, 1851. Frederick W.”

  1879-history-of-rock-county/02-wisconsin-as-a-state.md, PDF p. 54

  Butterfield, C. W., et al. The History of Rock County, Wisconsin: its early settlement, growth, development, resources, etc. Chicago: Western Historical Company, 1879. Cornell University Library via the Internet Archive, archive.org/details/cu31924028871585.

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