Both Alexander Sumarokov and Mikhail Lomonosov inaugurated classicism in what?
Alexander Sumarokov: Alexander Petrovich Sumarokov (Russian: Алекса́ндр Петро́вич Сумаро́ков ; 25 November 1717 [O.S. 14 November] , Moscow – 12 October 1777 [O.S. 1 October] , Moscow) was a Russian poet and playwright who single-handedly created classical theatre in Russia, thus assisting Mikhail Lomonosov to inaugurate the reign of classicism in Russian literature. Russian literature:  The poets most often associated with the "Silver Age" are Konstantin Balmont, Valery Bryusov, Alexander Blok, Anna Akhmatova, Nikolay Gumilyov, Osip Mandelstam, Sergei Yesenin, Vladimir Mayakovsky, Marina Tsvetaeva and Boris Pasternak.
Russian literature