Alexandre Gustave Eiffel (born Bonickhausen dit Eiffel;[1] /ˈaɪfəl/; French pronunciation: [ɛfɛl]; 15 December 1832 – 27 December 1923) was a French civil engineer. A graduate of École Centrale Paris, he made his name building various bridges for the French railway network, most famously the Garabit viaduct. He is best known for the world-famous Eiffel Tower, built for the 1889 Universal Exposition in Paris, and his contribution to building the Statue of Liberty in New York. After his retirement from engineering, Eiffel focused on research into meteorology and aerodynamics, making significant contributions in both fields.