[Graduate of the S.M.Kirov Military-medical academy Fedor Levin: on the way to discovery of DNA]

Biochemist Fedor Aronovich LeviN (1869-1940) graduated with honours from the S.M.Kirov Military Medical Academy in St. Petersburg in 1891 where he had received a fundamental knowledge from A.P.Dianin and I.P.Pavlov, and then he immigrated to the US. More than three and a half decades of his successful research at the Rockefeller Institute for Medical Research contributed to the foundation of the doctrine of nucleic acids. Scientists, who continued to research nucleic acids, were awarded the Nobel Prize, but Levin and his contribution were forgotten. The authors of the given article didn't found any source in Russian about this prominent biochemist of the 20th century and member of the Russian scientific school. The purpose of the article is to acquaint the reader with a scientific biography of the scientist. who became, without exaggeration, one of the founders of modern genetics.