トリスタン・ツァラ
The French avant-garde kept abreast of Dada activities in Zürich with regular communications from Tristan Tzara (whose pseudonym means "sad in country," a name chosen to protest the treatment of Jews in his native Romania), who exchanged letters, poems, and magazines with Guillaume Apollinaire, André Breton, Max Jacob, Clément Pansaers, and other French writers, critics and artists.