In 2007 Schumann premiered "Independence Paintings: Inspired by Four Stories" in Boston and Burlington, Vermont. The series was inspired by ten days Schumann spent in the Occupied Territories of Palestine, as well as John Hersey's 'The Wall', a graphic account of the birth, development, and destruction of the Warsaw Ghetto, the largest of the Jewish ghettos established by Nazi Germany during the Jewish Holocaust. The series proved controversial, with critics labeling Schumann's works as "anti-Zionist", "anti-Semitic" and "soft-core Holocaust denial", accusations Schumann denied, stating that "I'm not saying that what's happening in Palestine is the same as what happened in Warsaw ... but it's certainly a reminder." While Schumann later acknowledged that he "may have unnecessarily hurt some people's feelings" with the series, he returned in 2008 to the theme of the Israeli–Palestinian conflict in his subsequent art series, "The University of Majd: The Story of a Palestinian Youth", which addresses a case of what Schumann believes to be false imprisonment in Israel.