Voice of Fire with striped T-shirts and ties that mimicked the painting. The 1996 book "Voices of Fire: Art Rage, Power, and the State", edited by Bruce Barber, Serge Guilbaut and John O'Brian, discusses the issues around the purchase of the painting. Commissioned for Expo 67, the International and Universal Exposition that took place in Montreal during Canada's 1967 centennial, "Voice of Fire" was part of the US pavilion organized by art critic and historian Alan Solomon. The exhibition, "American Painting Now" featured the work of twenty-two artists installed in the US Pavilion, a geodesic dome designed by engineer Buckminster Fuller. Explicitly oriented
S-Bahn Mitteldeutschland in both directions, which ran to Gaschwitz in the south. Later lines were built out to Wurzen in the east and Grünau in the West. On 29 February 1968, the Leipzig Bezirk government decided to build an S-Bahn network. Already at the spring trade fair, the "S-Bahn-style rapid transit" system was demonstrated between the main station and the newly established "Messegelände" (Exhibition Center) stop. By 12 July 1969, the S-Bahn network was expanded to the entire heart shape, in order to cope with traffic volume of the 5th East-German Gymnastics and Sports Festival (). The two branches were named S1