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In page Discourse analysis:

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There is ongoing discussion about whether Austria-born Leo Spitzer's Stilstudien (Style Studies) of 1928 is the earliest example of discourse analysis (DA).[citation needed] Michel Foucault translated it into French.[1] However, the term first came into general use following the publication[citation needed] of a series of papers by Zellig Harris from 1952[2] reporting on work from which he developed transformational grammar in the late 1930s. Formally equivalent relations among the sentences of a coherent discourse are made explicit by using sentence transformations to put the text in a canonical form. Words and sentences with equivalent information then appear in the same column of an array.