Structural linguistics is an approach to linguistics originating from the work of Swiss linguist Ferdinand de Saussure and is part of the overall approach of structuralism. De Saussure's Course in General Linguistics, published posthumously in 1916, stressed examining language as a static system of interconnected units. He is thus known as a father of modern linguistics for bringing about the shift from diachronic (historical) to synchronic (non-historical) analysis, as well as for introducing several basic dimensions of semiotic analysis that are still important today, such as syntagmatic and paradigmatic analysis (or 'associations' as Saussure was still calling them).