Conservation-restoration of Leonardo da Vinci's The Last Supper until 1498. The scene is understood to depict the Bible verse John 13:22, showing the reactions of the Twelve Disciples, at the Last Supper, in the moments following Jesus’s announcement that one among them will betray him. When he received the commission for "The Last Supper", Leonardo da Vinci had never worked on a piece of this great a size, fifteen feet high by almost twenty-nine feet wide. He also had very limited experience working in the technique known as fresco, mixing pigment into wet plaster to create a permanent bond. Traditionally, fresco painters put down many successive layers of
Italian submarine Leonardo da Vinci (1939) other men survived following a 50-day ordeal on a liferaft. In April 1943 "Leonardo da Vinci" sank three vessels in the Indian Ocean off the coast of Durban. After sinking four more ships, on 22 May 1943 "Leonardo da Vinci" unwisely signalled its intention to head for Bordeaux on completion of its patrol. Its position having been fixed by direction-finding, on 23 May the destroyer and the frigate (both escorts to convoys WS-30 and KMF-15) subjected the submarine to an intense depth charge attack and sank it west of Vigo at an estimated position of . There were no survivors.