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The Moscow linguistic circle was a group of important thinkers in semiotics, literary theory, and linguistics active in Moscow from 1915 to ca. 1924. Its members included Filipp Fedorovich Fortunatov (its founder), Roman Jakobson, Grigory Vinokur, Boris Tomashevsky, and Petr Bogatyrev. The group was a counterpart to the St. Petersburg linguistic group OPOJAZ; between them, these two groups (together with the later Prague linguistic circle) were responsible for the development of Russian formalist literary semiotics and linguistics.