First Missouri State Capitol State Historic was the site where Missouri's first legislators met to discuss the task of reoganizing Missouri's previous government into a progressive state system. Heated debates and intense discussions regarding the future of Missouri's state government and its slavery laws were held from June 4, 1821 to October 1, 1826 at this location.

Visitors can tour the restored and furnished rooms where Missouri's state government was created and first practiced for a nominal fee. Admission is free to the historic site's interpretive center, which offers two floors of exhibits and an orientation show. Tours are on the hour and group rates are available.