In the context of this artwork, explain the Restoration of the History.
On March 26, 1985, the Central Park Conservancy and the architecture firm of Buttrick White & Burtis presented plans to the Landmarks Preservation Commission for a full restoration of the plaza, including the Sherman Monument.  The work was completed in June 1990, including a re-gilding of the statue, and the replacement of a palm frond and a sword that had been removed previously.The Grand Army Plaza was renewed again in 2013, including a re-gilding of the statue of William Tecumseh Sherman.
Central Park Conservancy Landmarks Preservation Commission William Tecumseh Sherman Grand Army Plaza Central Park Buttrick White & Burtis