Fernando Andacht is a Uruguayan-born semiotician. Other notable members included the philosopher, semiotician and novelist Umberto Eco. His students included semiotician Thomas A. Sebeok. Different authors have called themselves "philosopher of language" or "semiotician". It was developed in 1966 by semiotician Algirdas Julien Greimas. Leonard I. Sweet is an American theologian, semiotician, church historian, pastor, and author. A Semiotician, Roland Barthes characterized the distinction between listening and hearing. Peeter Torop (born November 28, 1950 in Tallinn, Estonia) is an Estonian semiotician. Irmengard Rauch (born 1933 in Dayton, Ohio) is a linguist and semiotician. Semiotician Umberto Eco commented favourably on the sequel in a weekly column in "L'Espresso".