1703-1769 1759-1805 1766-1826 1799-1837 18thcentury aleksandrpetrovich aleksandrsergeevich biography criticismandinterpretationkaramzin criticismandinterpretationsumarokov criticismandinterpretationtrediakovskiĭ friedrich history historyandcriticism jansenists nikolaĭmikhaĭlovich philology pushkin reform russia russia(federation) russianlanguage russianliterature schiller standardization sumarokov