1944 observed this custom. By the early 1960s, the monument had grown very blackened from coal soot and automobile exhaust, and during 1965–1966 it was cleaned through bleaching. In the prolongation of the Avenue des Champs-Élysées, a new arch, the Grande Arche de la Défense, was built in 1982, completing the line of monuments that forms Paris's Axe historique. After the Arc de Triomphe du Carrousel and the Arc de Triomphe de l'Étoile, the Grande Arche is the third arch built on the same perspective. In 1995, the Armed Islamic Group of Algeria placed a bomb near the Arc de Triomphe which wounded 17 people as part of a campaign of bombings. 21st century In late 2018, the Arc de Triomphe suffered acts of vandalism as part of the Yellow vests protests. The vandals sprayed the monument with graffiti and ransacked its small museum. L'Arc de Triomphe, Wrapped In September 2021, the arc was wrapped in a silvery blue fabric and red rope, a posthumous project planned by artists Christo and Jeanne-Claude since the early 1960s. Design Monument The astylar design is by Jean Chalgrin (1739–1811), in the Neoclassical version of ancient Roman architecture. Major academic sculptors of France are represented in the sculpture of the Arc de Triomphe: Jean-Pierre Cortot; François Rude; Antoine Étex; James Pradier and Philippe Joseph Henri Lemaire. The main sculptures are not integral friezes but are treated as independent trophies applied to the vast ashlar masonry masses, not unlike the gilt-bronze appliqués on Empire furniture. The four sculptural groups at the base of the Arc are The Triumph of 1810 (Cortot), Resistance and Peace (both by Antoine Étex), and the most renowned of them all, Departure of the Volunteers of 1792 commonly called La Marseillaise (François Rude). The face of the allegorical representation of France calling forth her people on this last was used as the belt buckle for the honorary rank of Marshal of France. Since the fall of Napoleon (1815), the sculpture representing Peace is interpreted as commemorating the Peace of 1815. In the attic above the richly sculptured frieze of soldiers are 30 shields engraved with the names of major French victories in the French Revolution and Napoleonic wars. The inside walls of the monument list the names of 660 people, among which are 558 French generals of the First French Empire; The names of those generals killed in battle are underlined.