Louvre Denon Wing, which borders the Seine to the south. In 1983, French President François Mitterrand proposed, as one of his Grands Projets, the Grand Louvre plan to renovate the building and relocate the Finance Ministry, allowing displays throughout the building. Architect I. M. Pei was awarded the project and proposed a glass pyramid to stand over a new entrance in the main court, the Cour Napoléon. The pyramid and its underground lobby were inaugurated on 15 October 1988 and the "Louvre Pyramid" was completed in 1989. The second phase of the Grand Louvre plan, "La Pyramide Inversée" ("The Inverted Pyramid"),
Paris in the Middle Ages not have an efficient system of covered sewers until Napoleon built them at the beginning of the 19th century. Street lighting was almost nonexistent in the Middle Ages. In 1318, it was recorded that there were just three street lanterns in Paris: one candle in a lantern outside the entrance to the Châtelet fortress; a candle outside the Tour de Nesle to indicate its entrance to boatmen; and a third lantern outside the Cemetery of the Innocents to remind passers-by to pray for the souls of the deceased. Very little light came from houses, since glass windows were extremely rare;