Fort Denison Light was created in 1913.
Fort Denison was created in 1857.
Fort Wadsworth Light was created in 1903.
Fort Carroll Light was created in 1900.
Fort Tompkins Light was created in 1873.
Fort Niagara Light was created in 1782.
Fort Pickering Light was created in 1871.
Fort Washington Light was created in 1882.
Denison Railroaders was created in 1914.
Denison Bridge was created in 1870.
Denison University was created in 1831.
Denison College was created in 2007.
As far as I know it was built in 1862 (: