1924. Its members included Filipp Fedorovich Fortunatov (its founder),[1] 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.