Category:1820s establishments in Washington, D.C.From Wikipedia, the free encyclopedia United States portalHistory portal This category is for organizations, places or other things founded or established in Washington, D.C. in the decade 1820s. 1770s1780s1790s1800s1810s1820s1830s1840s1850s1860s1870s 14th15th16th17th18th19th20th21st22nd23rd24th
United States portalHistory portal This category is for organizations, places or other things founded or established in Washington, D.C. in the decade 1820s. 1770s1780s1790s1800s1810s1820s1830s1840s1850s1860s1870s 14th15th16th17th18th19th20th21st22nd23rd24th