Historical Society of Washington, D.C.
The Historical Society of Washington, D.C., is a community-supported educational and research organization that collects, interprets, and shares the history of our nation's capital. Founded in 1894, the Society serves a diverse audience through its collections, public programs, exhibitions, and publications. Headquartered in the historic Carnegie Library at Mt. Vernon Square, the Society's galleries and research library are open Monday through Thursday, 10 a.m. to 4 p.m.