Legality of Cannabis by U.S. Jurisdiction Illinois portalUnited States portal This category is for organizations, places or other things disestablished in Illinois in the year 1818. 18131814181518161817181818321833183718401844 1760s1770s1780s1790s1800s1810s1820s1830s1840s1850s1860s See also: Category:1818 establishments in Illinois Pages in category "1818 disestablishments in Illinois" This category contains only the following page. This list may not reflect recent changes. I Illinois Territory's at-large congressional district