Statue of Liberty National Monument national monument in 1924. In 1937, by proclamation 2250, President Franklin D. Roosevelt expanded the monument to include all of Bedloe's Island, and in 1956, an act of Congress officially renamed it Liberty Island. Ellis Island was made part of the Statue of Liberty National Monument by proclamation of President Lyndon Johnson in 1965. The United States historic district, a single listing on the U.S. National Register of Historic Places, was designated in 1966. The islands were closed during Hurricane Sandy in October 2012 and suffered severe damage. Liberty Island reopened July 4, 2013; Ellis Island re-opened October 24, 2013.
Conservation-restoration of the Statue of Liberty completely assembled by April 27, 1984. The high scaffolding was designed specifically for the statue, and required ingenuity from its designers, as it could only be attached to the granite pedestal and not the statue and had to accommodate the intricate contours of the statue as well. Furthermore, the exterior scaffolding had to maintain a distance of at least 18 inches from any exposed section of the copper sheathing. The 6,000 or so separate components of the scaffold, made of a high load capacity aluminum (alloy 6061 T6), were unloaded onto Liberty Island on January 23, 1984. To prevent possible