Editing Topic and comment (section)

==History==
The distinction between subject and topic was probably first suggested by [[Henri Weil]] in 1844.<ref>H. Weil, De l’ordre des mots dans les langues anciennes compares aux
langues modernes: question de grammaire gnrale. Joubert, 1844.</ref> He established the
connection between [[information structure]] and word order. [[Georg von der Gabelentz]] distinguished '''psychological subject''' (roughly topic) and '''psychological object''' (roughly focus). In the [[Prague school]], the dichotomy, termed '''topic–focus articulation''', has been studied mainly by [[Vilém Mathesius]],<ref>V. Mathesius and J. Vachek, A Functional Analysis of Present Day
English on a General Linguistic Basis, ser. Janua linguarum : Series
practica / Ianua linguarum / Series practica. Mouton, 1975.</ref> [[Jan Firbas]], [[František Daneš]], [[Petr Sgall]] and [[Eva Hajičová]]. They have been concerned mainly by its relation to intonation and word-order. Mathesius also pointed out that the topic does not provide new information but connects the sentence to the context. The work of [[Michael Halliday]] in the 1960s is responsible for developing linguistic science through his [[systemic functional linguistics]] model for English.<ref>M.A.K.Halliday, An Introduction to Functional Grammar, 2nd ed.
London: Arnold, 1994.</ref>