Philadelphia has endured plagues before. It adapted and became a better place. | Inga Saffron
Is digital infrastructure the sanitation of our time? What does that mean for the future of cities?
In response to repeated epidemics, Philadelphia expanded its water treatment system. This photo shows city workers laying large water mains in 1907 next to City Hall on South Penn Square.Read morePhillyHistory.org, a project of the Philadelphia Department of Records.
