Vasily Osipovich Klyuchevsky (1841-1911) - an outstanding Russian historian. His works are still the most valuable tool for studying the history of Russia from ancient times to the 19th century. This brilliant scientist laid the foundations of historical science in the form in which it exists and develops to this day. "The Course of Russian History" is the pinnacle of his scientific work. Excellent language, accurate estimates, a large amount of historical material.