 In 1915, ownership of the newly created land became an issue in a lawsuit.The boundary of the District of Columbia had been set by the Black-Jenkins Award, a decision by an arbitration panel in 1874 which resolved centuries of dispute by placing Virginia's boundary with Maryland at the low-water mark on the Virginia side of the Potomac River.The Virginia retrocession of 1846-1847 returned a portion of the District of Columbia on the Virginia site of the Potomac River to the state of Virginia.