Greenbelt, Maryland in a north-south direction, running parallel to the B–W Parkway, providing an alternate travel route into Washington, D.C., from Greenbelt. The southernmost Maryland portion of Kenilworth Avenue forms a major interchange with both the B–W Parkway and US 50 near the Maryland–D.C. line, and continues into Washington, as the Kenilworth Avenue Freeway (DC 295). Washington Metro′s rapid transit rail system serves Washington, D.C., and neighboring communities in Maryland and Northern Virginia, by operating 91 Metro stations, which includes the Greenbelt station, the northern terminus of Metro′s Green Line. Commuter rail service to the station is provided by MARC Train′s Camden
Maryland of the American Revolutionary War (1775–1783), on February 2, 1781, Maryland became the last and 13th state to approve the ratification of the Articles of Confederation and Perpetual Union, first proposed in 1776 and adopted by the Second Continental Congress in 1778, which brought into being the United States as a united, sovereign and national state. It also became the seventh state admitted to the Union after ratifying the new federal Constitution in 1788. In December 1790, Maryland donated land selected by first President George Washington to the federal government for the creation of the new national capital of Washington,