Morningside Park (New York City) on September 16, 1776. Year later, during the War of 1812 three blockhouse fortifications were built on the land. The park was first proposed by the Central Park Commissioners in 1867, after Andrew Haswell Green, Commissioner and Comptroller of Central Park, proposed that a park be built in Morningside Heights to avoid the expense of expanding the Manhattan street grid across difficult terrain. In 1870, the City of New York obtained jurisdiction of the property. The original design for the park, submitted by Parks Engineer-in-Chief M.A. Kellogg in 1871, was rejected by the Board of Commissioners for Public Parks. In
Flags of New York City Baseball team, and the New York City FC of Major League Soccer. In 2017, NYCFC added the tricolor city flag to its jersey, substituting its own "NYC" monogram in place of the seal. The New York Islanders National Hockey League team also uses the orange, blue and white, however, although the team moved to the New York City borough of Brooklyn in 2015, the team colors were selected when the team played in Nassau County, Long Island, which also has blue and orange as official colors. The office of the Mayor of New York City has its own official variant,