Category:1820s in case law Law portal This category is for case law in the decade 1820s. 1770s1780s1790s1800s1810s1820s1830s1840s1850s1860s1870s 14th15th16th17th18th19th20th21st22nd23rd24th Subcategories This category has the following 11 subcategories, out of 11 total. 0–9 1820 in case law (1 C) 1821 in case law (1 C, 1 P) 1822 in case law (1 C) 1823 in case law (1 C) 1824 in case law (1 C) 1825 in case law (1 C) 1826 in case law (1 C, 1 P) 1827 in case law (1 C) 1828 in case law (1 C, 2 P) 1829 in case law (1 C)U 1820s in United States case law (10 C)