The symbol of the sacrifices of the soldiers during the First World War, the poppy reappears every November on the buttonholes and the wreaths laid on the war memorials of the Anglo-Saxon countries. Poppy symbolism dates back to the Napoleonic Wars of the 19th century when poppies began to bloom on the graves of soldiers in Flanders. These lands, presented as sterile before the war, were, indeed, covered with blood-red flowers after the end of the fights. It was the rubble linked to the bombardments that enriched the limestone soils with lime and allowed the poppies to develop.