Yakov Isidorovich Perel’man spread the word about rocketry and spaceflight to a Russian audience years ahead of Western Europe. Before World War I, he began to popularize Konstantin Tsiolkovsky’s ideas in science works for the general public. In 1915 he published Interplanetary Journeys, the first book in the world on the science and technology of spaceflight.
Image Number: 76-4432
Credit: National Air and Space Museum Archives, Smithsonian Institution
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