Conservation-restoration of the Statue of Liberty The restored statue was reopened during Liberty Weekend, its 100-year anniversary celebration held July 3–6, 1986. The preparations for the centennial celebration of the Statue of Liberty began in 1979. Formed by the National Park Service (NPS), the custodians of the statue since 1933, to investigate possible development alternatives[incomplete sentence]. A report titled "Analysis of Alternatives", published in December 1980, proposed measures to remedy the certain conditions confronting visitors to the Statue of Liberty, such as the long lines and waiting time to enter the crown of the statue. The proposed measures included the instatement of systems for numbered ticketing
Statue of Liberty Bartholdi greatly admired the United States Constitution, he chose to inscribe "JULY IV MDCCLXXVI" on the tablet, thus associating the date of the country's Declaration of Independence with the concept of liberty. Bartholdi interested his friend and mentor, architect Eugène Viollet-le-Duc, in the project. As chief engineer, Viollet-le-Duc designed a brick pier within the statue, to which the skin would be anchored. After consultations with the metalwork foundry Gaget, Gauthier & Co., Viollet-le-Duc chose the metal which would be used for the skin, copper sheets, and the method used to shape it, repoussé, in which the sheets were heated and