Legality of Cannabis by U.S. Jurisdiction Illinois portalUnited States portalHistory portal This category is for topics specifically related to the year 1825 in the U.S. state of Illinois. 18201821182218231824182518261827182818291830 1770s1780s1790s1800s1810s1820s1830s1840s1850s1860s1870s Subcategories This category has the following 2 subcategories, out of 2 total. / 1825 establishments in Illinois (11 P)E 1825 Illinois elections (1 P)