The Prague and London Phonological school. The Prague School, founded in 1926 by Vilém Mathesius, significantly contributed to structuralism, particularly in linguistics and semiotics. Central to its efforts was the development of functionalism, emphasizing the roles structures play within language. Members like Roman Jakobson and Nikolai Trubetzkoy advanced phonology by introducing concepts such as distinctive features and phonemes, which revolutionized the analysis of language sounds. Their theories influenced the structural analysis of poetic and literary forms, enhancing the understanding of language's aesthetic and functional aspects. The Prague School also laid groundwork for concepts like the synchronization and diachronization of linguistic phenomena, advancing Ferdinand de Saussure's theories. It critically impacted later structuralist methodologies, affecting fields as diverse as anthropology and literary criticism, and nurturing minds like Claude Lévi-Strauss and Roland Barthes in their structural analyses.