Pnin (Russian pronunciation: [pnʲin]) is Vladimir Nabokov's 13th novel and his fourth written in English; it was published in 1957. The success of Pnin in the United States launched Nabokov's career into literary prominence. Its eponymous protagonist, Timofey Pavlovich Pnin, is a Russian-born assistant professor in his 50s living in the United States, whose character is believed to be based partially on the life of both Nabokov's colleague Marc Szeftel as well as on Nabokov himself. Exiled by the Russian Revolution and what he calls the "Hitler war", Pnin teaches Russian at the fictional Waindell College, loosely inspired by Cornell University and Wellesley College—places where Nabokov himself taught.