Sergei Mikhailovich Prokudin-Gorskii, Russian chemist and photographer, best known for his pioneering work in colour photography of early 20th century Russia. With the support of Tsar Nicholas II, he undertook a photographic survey of the Russian Empire between 1909-1912, and again in 1915.
After Prokudin-Gorskii's death in 1944, the archive was acquired by the Library of Congress. An exhibition, The Empire That Was Russia : The Prokudin-Gorskii Photographic Record Recreated, was held in 2001.
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