1703-1769 1717-1777 1743-1816 1766-1826 1787-1855 18thcentury 19thcentury aleksandrpetrovich biography criticismandinterpretationbati︠u︡shkov criticismandinterpretationderzhavin criticismandinterpretationsumarokov criticismandinterpretationtrediakovskiĭ gavriilromanovich history historyandcriticism jansenists nikolaĭmikhaĭlovich philology reform russia russia(federation) russianlanguage russianliterature russianpoetry russianproseliterature sentimentalisminliterature standardization