John Bachman’s lithograph of Olmsted and Vaux’s design via Racontours. 150 years ago today the Board of Commissioners of Central Park chose the “Greensward plan” submitted by Frederick Law Olmsted and Calvert Vaux for the design of America’s first major urban public park. Except for the rock outcrops, the park is almost entirely man-made; the meadows were swamps until the designers had them drained and dumped tens of thousands of cartloads of soil to fill......