Andy Shallal’s fourth mural pays homage to his late friend and mentor, historian and anti-war activist, Howard Zinn and Zinn’s best-known work, A People’s History of the United States. The title of the mural, “I’ve Known Rivers,” is a poem by Langston Hughes that stretches across the mural, weaving together the inspiration behind the name Busboys and Poets and the events and people that inspired Zinn’s faith in the possibility of historic change. Zinn’s life work stresses the importance for a critical understanding of our history and Shallal’s wall emphasizes Zinn’s philosophy. This philosophy emphasizes the role of working people, women, people of color, and organized social movements in shaping our history, and how history is made not by a few heroic individuals, but by people’s everyday choices and actions.