PHILADELPHIA - In 1682, the English aristocrat and devout Quaker, William Penn, laid out the plans for a new kind of city. Having experienced religious persecution firsthand, Penn envisioned his colony of Pennsylvania as a "Holy Experiment"—a place of peace and unwavering faith where people from all religious backgrounds could live together without fear. This vision of a peaceful, tolerant society was the guiding principle behind the founding of his capital city.