Pyotr Kozmitch Frolov
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Pyotr Kozmitch Frolov (Фролов, Пётр Козьмич in Russian) (January 16(27), 1775 – December 10(22), 1839), Russian mining engineer and inventor who built the first horse-railway in Russia in 1809, elaborated projects of canals and other artificial water constructions, contributed to the development of scientific researches and culture of the Altai region. His activities as a head of the Kolyvano-Voskresensk factories had promoted a great advance of Russian technology in the beginning of the 20th century.