The Pennsylvania system was opposed contemporaneously by the Auburn system (also known as the New York system), which held that prisoners should be forced to work together in silence, and could be subjected to physical punishment (Sing Sing prison was an example of the Auburn system). Although the Auburn system was favored in the United States, Eastern State's radial floor plan and system of solitary confinement was the model for over 300 prisons worldwide. Critic and activist John Neal in 1841 expressed revulsion at the international reputation of "a nation that broke away from all its bands and fetters, only fifty or sixty years ago — overthrowing prisons, palaces, and thrones in her march toward universal emancipation, already renowned throughout the whole earth, for her prisons, her manacles, and her badges of servitude."
