Category:Mass murder in the 1820s 1770s1780s1790s1800s1810s1820s1830s1840s1850s1860s1870s Subcategories This category has the following 7 subcategories, out of 7 total. 0–9 Mass murder in 1821 (1 C) Mass murder in 1822 (1 C) Mass murder in 1823 (1 C) Mass murder in 1824 (1 C) Mass murder in 1826 (1 C) Mass murder in 1828 (1 C)M Massacres in the 1820s (7 C)
