For some time, a myth about Magnum Photos swirled around photography circles. It was said that the world’s most prestigious photo agency—founded in 1947 by Robert Capa, Henri Cartier-Bresson, George Rodger, and David “Chim” Seymour—was named after an enormous bottle of champagne. Legend had it that the bottle was enjoyed during a celebratory lunch at New York’s Museum of Modern Art, in the sculpture garden.

Though untrue, the story captures the founders’ spirit. In 1947, the evils of W.W. II were still raw. Cartier-Bresson had endured three years in a German internment camp; Rodger had escaped Japanese soldiers through a Burmese rainforest; Seymour’s Polish-Jewish parents were murdered by the Nazis; and Capa’s partner Gerda Taro was killed by a tank during the Spanish Civil War. Still licking their wounds, the men set out to capture America’s rebirth.