WELCOME TO THE USAWELCOME TO THE USA Washingtonthe capital of the USAWashington,D.C.isthecapitalcityoftheUnitedStatesofAmerica.D.C.standsfortheDistrictofColumbia,thefederaldistrictcontainingthecityofWashington.ThecityisnamedafterGeorgeWashington,militaryleaderoftheAmericanRevolutionandthefirstPresidentoftheUnitedStates.TheDistrictofColumbia,foundedonJuly16,1790,isafederaldistrictasspecifiedbytheUnitedStatesConstitution.ThecentersofallthreebranchesoftheU.S.federalgovernmentareinWashington,D.C.,as