January 1857
The Wisconsin legislature commenced its tenth regular session at Madison, with a Republican majority in both houses; Wyman Spooner was elected speaker of the assembly.
The regionGrade A · 1 independent source
The evidence
“The legislature commenced its tenth regular session at Madison, on the fourteenth day of January, 1857, with a republican majority in both houses. Wyman Spooner was elected speaker of the assembly.”
1879-history-of-rock-county/02-wisconsin-as-a-state.md, PDF p. 62
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
On the printed page (PDF p. 62) · open the whole page