and Jean Darbelnet carried out a contrastive comparison of French and English. In 1964, Eugene Nida published Toward a Science of Translating, a manual for Bible translation influenced to some extent by Harris's transformational grammar. In 1965, J. C. Catford theorized translation from a linguistic perspective. In the 1960s and early 1970s, the Czech scholar Jiří Levý and the Slovak scholars Anton Popovič and František Miko worked on the stylistics of literary translation. These initial steps toward research on literary translation were collected in James S. Holmes' paper at the Third International Congress of Applied Linguistics held in Copenhagen in 1972. In that paper, "The name and nature of translation studies", Holmes asked for the consolidation of a separate discipline and proposed a classification of the field. A visual "map" of Holmes' proposal was later presented by Gideon Toury in his 1995 Descriptive Translation Studies and beyond. Before the 1990s, translation scholars tended to form particular schools of thought, particularly within the prescriptive, descriptive and Skopos paradigms. Since the "cultural turn" in the 1990s, the discipline has tended to divide into separate fields of inquiry, where research projects run parallel to each other, borrowing methodologies from each other and from other academic disciplines. Schools of thought The main schools of thought on the level of research have tended to cluster around key theoretical concepts, most of which have become objects of debate. Equivalence Through to the 1950s and 1960s, discussions in translation studies tended to concern how best to attain "equivalence". The term "equivalence" had two distinct meanings, corresponding to different schools of thought. In the Russian tradition, "equivalence" was usually a one-to-one correspondence between linguistic forms, or a pair of authorized technical terms or phrases, such that "equivalence" was opposed to a range of "substitutions". However, in the French tradition of Vinay and Darbelnet, drawing on Bally, "equivalence" was the attainment of equal functional value, generally requiring changes in form. Catford's notion of equivalence in 1965 was as in the French tradition. In the course of the 1970s, Russian theorists adopted the wider sense of "equivalence" as something resulting from linguistic transformations. At about the same time, the Interpretive Theory of Translation introduced the notion of deverbalized sense into translation studies, drawing a distinction between word correspondences and sense equivalences, and showing the difference between dictionary definitions of words and phrases (word correspondences) and the sense of texts or