Leonid Efimovich Grinin (Russian: Леони́д Ефи́мович Гри́нин; born in 1958) is a Russian philosopher of history, sociologist, political anthropologist, economist, and futurologist.Born in Kamyshin (the Volgograd Region), Grinin attended Volgograd State Pedagogical University, where he got an M.A. in 1980. He got his Ph.D.