answers: 1924
context: 30 years, it was exhibited only on rare occasions at the discretion of the Secretary of State. In 1921, custody of the Declaration, along with the United States Constitution, was transferred from the State Department to the Library of Congress. Funds were appropriated to preserve the documents in a public exhibit that opened in 1924. After the Japanese attack on Pearl Harbor in 1941, the documents were moved for safekeeping to the United States Bullion Depository at Fort Knox in Kentucky, where they were kept until 1944. For many years, officials at the National Archives believed that they, rather than </s> Congress officially renamed Bedloe's Island as Liberty Island, a change advocated by Bartholdi generations earlier. The act also mentioned the efforts to found an American Museum of Immigration on the island, which backers took as federal approval of the project, though the government was slow to grant funds for it. Nearby Ellis Island was made part of the Statue of Liberty National Monument by proclamation of President Lyndon Johnson in 1965. In 1972, the immigration museum, in the statue's base, was finally opened in a ceremony led by President Richard Nixon. The museum's backers never provided it with an endowment </s> of Engineers vetoed the proposal, fearing that ships' pilots passing the statue would be blinded. Instead, Bartholdi cut portholes in the torch—which was covered with gold leaf—and placed the lights inside them. A power plant was installed on the island to light the torch and for other electrical needs. After the skin was completed, renowned landscape architect Frederick Law Olmsted, co-designer of New York's Central Park and Brooklyn's Prospect Park, supervised a cleanup of Bedloe's Island in anticipation of the dedication. A ceremony of dedication was held on the afternoon of October 28, 1886. President Grover Cleveland, the former New
question: when did statue of liberty became a national monument