{{Use mdy dates|date=January 2025}}
{{Use mdy dates|date=January 2025}}
The ”’12th Illinois General Assembly”’, consisting of the [[Illinois Senate]] and the [[Illinois House of Representatives]], met from November 23, 1840 to December 5, 1840 (1st session) and from December 7, 1840 to March 1, 1841 (2nd session).{{sfn|Illinois Blue Book|1919|page=531-532}}
The ”’12th Illinois General Assembly”’, consisting of the [[Illinois Senate]] and the [[Illinois House of Representatives]], met from November 23, 1840 to December 5, 1840 (1st session) and from December 7, 1840 to March 1, 1841 (2nd session).{{sfn|Illinois Blue Book|1919|page=531-532}}
The 12th General Assembly was preceded by the [[11th Illinois General Assembly]], and was succeeded by the [[13th Illinois General Assembly]].
The 12th General Assembly was preceded by the [[11th Illinois General Assembly]], and was succeeded by the [[13th Illinois General Assembly]].