Residence Act
... that Washington, D.C.'s location as the U.S. capital on the Potomac River was decided by Congress, with passage of the Residence Act of 1790?
... that <a href="./Washington,_D.C." id="mwCgY" rel="mw:WikiLink" title="Washington, D.C.">Washington, D.C.</a>'s location as the <a href="./United_States" id="mwCgc" rel="mw:WikiLink" title="United States">U.S.</a> capital on the <a href="./Potomac_River" id="mwCgg" rel="mw:WikiLink" title="Potomac River">Potomac River</a> was decided by <a href="./United_States_Congress" id="mwCgk" rel="mw:WikiLink" title="United States Congress">Congress</a>, with passage of the <b id="mwCgo"><a href="./Residence_Act" id="mwCgs" rel="mw:WikiLink" title="Residence Act">Residence Act</a></b> of 1790?