Fort Jay is a coastal bastion fort and the name of a former United States Army post on Governors Island in New York Harbor. It was built in 1794 to defend Upper New York Bay, but has served other purposes. From 1806 to 1904 it was named Fort Columbus, presumably for explorer Christopher Columbus.
Fort Columbus played an important role in the military life of New York City as the largest army post defending the city. The fortification, together with other forts, provided protection for the city and Upper New York Bay. This system of coastal fortifications is credited with discouraging the British from taking any naval action against the city during the War of 1812, who preferred easier targets in the Great Lakes, the Chesapeake Bay (resulting in the burning of Washington, DC), and the Gulf of Mexico below New Orleans.
Today Fort Jay is open to the public on a summer seasonal basis as they undergo stabilization and the remainder of the island undergoes redevelopment by the City of New York through the Trust for Governors Island.
References:Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.