 A second congress took place 1 – 5 October 1930, in Hamburg, Germany; the third from 2 – 7 October 1933; and the 4th and final conference in this series took place 4 – 10 October 1936.In addition to drawing concerted scientific interest, the phenomenon of synesthesia started arousing interest in the salons of "fin de siecle" Europe.The French Symbolist poets Arthur Rimbaud and Charles Baudelaire wrote poems which focused on synesthetic experience.