Also inscribed, on the shorter sides of the four supporting columns, are the names of the major French victories in the Napoleonic Wars. The battles that took place in the period between the departure of Napoleon from Elba to his final defeat at Waterloo are not included. For four years from 1882 to 1886, a monumental sculpture by Alexandre Falguière topped the arch. Titled Le triomphe de la Révolution ("The Triumph of the Revolution"), it depicted a chariot drawn by horses preparing "to crush Anarchy and Despotism". Inside the monument, a permanent exhibition, conceived by artist Maurice Benayoun and architect Christophe Girault, opened in February 2007. Tomb of the Unknown Soldier Beneath the Arc is the Tomb of the Unknown Soldier from World War I. Interred on Armistice Day 1920, an eternal flame burns in memory of the dead who were never identified (now in both world wars). A ceremony is held at the Tomb of the Unknown Soldier every 11 November on the anniversary of the Armistice of 11 November 1918 signed by the Entente Powers and Germany in 1918. It was originally decided on 12 November 1919 to bury the unknown soldier's remains in the Panthéon, but a public letter-writing campaign led to the decision to bury him beneath the Arc de Triomphe. The coffin was put in the chapel on the first floor of the Arc on 10 November 1920, and put in its final resting place on 28 January 1921. The slab on top bears the inscription: Ici repose un soldat français mort pour la Patrie, 1914–1918 ("Here rests a French soldier who died for the Fatherland, 1914–1918"). In 1961, U.S. President John F. Kennedy and First Lady Jacqueline Kennedy paid their respects at the Tomb of the Unknown Soldier, accompanied by President Charles de Gaulle. After the 1963 assassination of President Kennedy, Mrs. Kennedy remembered the eternal flame at the Arc de Triomphe and requested that an eternal flame be placed next to her husband's grave at Arlington National Cemetery in Virginia. Details The four main sculptural groups on each of the Arc's pillars are: Le Départ de 1792 (or La Marseillaise), by François Rude. The sculptural group celebrates the cause of the French First Republic during the 10 August uprising. Above the volunteers is the winged personification of Liberty. This group served as a recruitment tool in the early months of World War I