Washington DC, formally the District of Columbia and commonly referred to as Washington, "the District", or simply DC, is the capital of the United States. The signing of the Residence Act on July 16, 1790, approved the creation of a capital district located along the Potomac River on the country's East Coast. As permitted by the U.S. Constitution, the District is under the exclusive jurisdiction of the United States Congress and is therefore not a part of any U.S. state.
Maryland is one of the smallest states in terms of area, but it remains one of the most populous as well as one of the most densely populated states of the United States. The state's largest city is Baltimore, and its capital is Annapolis. Although the state is officially claimed to be named after Queen Henrietta Maria, many historians believe Maryland was named after Mary, the mother of Jesus by George Calvert, prior to his death in 1632. The original intent may never be known. Maryland has the highest median household income, making it the wealthiest state in the nation.
Virginia, officially the Commonwealth of Virginia, is a US state located in the South Atlantic region of the United States. Virginia is nicknamed the "Old Dominion" and the "Mother of Presidents" after the eight U.S. presidents born there. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most populous city, though Fairfax County is the most populous political subdivision. The Commonwealth's estimated population is 8,185,866 as of 2012.