Vincenzo Peruggia am, through the door where the other Louvre workers were entering. He said he wore one of the white smocks that museum employees customarily wore and was indistinguishable from the other workers. When the Salon Carré, where the "Mona Lisa" hung, was empty, he lifted the painting off the four iron pegs that secured it to the wall and took it to a nearby service staircase. There, he removed the protective case and frame. Some people report that he concealed the painting (which Leonardo painted on wood) under his smock. But Peruggia was only , and the "Mona Lisa" measures
Louvre building was occupied by the Académie des Inscriptions et Belles-Lettres and the Académie Royale de Peinture et de Sculpture, which in 1699 held the first of a series of salons. The Académie remained at the Louvre for 100 years. During the French Revolution, the National Assembly decreed that the Louvre should be used as a museum to display the nation's masterpieces. The museum opened on 10 August 1793 with an exhibition of 537 paintings, the majority of the works being royal and confiscated church property. Because of structural problems with the building, the museum was closed in 1796 until 1801.