January 20, 1838
Both houses of the legislature adjourned (the session at Burlington ended) until the second Monday of June.
Nation and worldGrade A · 1 independent source
The evidence
“One hundred and five acts and twenty joint resolutions were passed. On the 20th of January, 1838, both houses adjourned until the second Monday of June following.”
1879-history-of-rock-county/01-wisconsin-antiquities-indians-territory.md, PDF p. 42 / book p. 46
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. 42 / book p. 46) · open the whole page