Liberty Enlightening the World (French: La liberté éclairant le monde), known more commonly as the Statue of Liberty (Statue de la Liberté), is a colossal statue given to the United States by France in 1886, standing at Liberty Island, in the mouth of the Hudson River in New York Harbor as a welcome to all visitors, immigrants, and returning Americans. The copper statue, dedicated on October 28, 1886, commemorates the centennial of the United States and is a gesture of friendship between the two nations. The sculptor was Frederic Auguste Bartholdi. Alexandre Gustave Eiffel, the designer of the Eiffel Tower, engineered the internal structure. Eugène Viollet-le-Duc was responsible for the choice of copper in the statue's construction and adoption of the Repoussé technique. The statue depicts a woman standing upright, dressed in a flowing robe and a seven point spiked crown representing the Seven Seas, holding a stone tablet close to her body in her left hand and a flaming torch high in her right hand. The statue is made of pure copper on a framework of steel (originally puddled iron) with the exception of the flame of the torch, which is coated in gold leaf. It stands atop a rectangular stonework pedestal, itself on an irregular eleven-pointed star foundation. The statue is 151 feet (46 meters) and one inch tall, with the foundation adding another 154 feet (46.9 meters). The tablet contains the text "JULY IV MDCCLXXVI" (July 4, 1776) commemorating the date of the United States Declaration of Independence. The interior of the pedestal contains a bronze plaque inscribed with the poem "The New Colossus" by Emma Lazarus. (It has never been engraved on the exterior of the pedestal, despite such depictions in editorial cartoons.