The park was built to the design of Olmsted Brothers, the firm of Frederick Law Olmsted Jr. and John Charles Olmsted in the early 20th century. The parkland was reclaimed mostly from marshlands of Greenwich Island, one of several islands in the area created by river channels present in the 18th and 19th centuries. The use of the park for the Sesquicentennial Exposition in 1926 and subsequent improvements have moderately changed the original design, keeping the main character of the park west of Broad Street. The original plan of the Olmsted Brothers still remains highly visible and significant west of Broad Street.
