Boston was built by Puritans, who celebrated civic power and class authority. Philadelphia was built by Quakers, who championed equality and deference.
Two hundred fifty years later, though considerably fewer people in those cities consider themselves a member of either group, their impact is still chiefly responsible for Boston outperforming and Philadelphia underperforming in their contributions to the greater world.
That’s the chief argument of the dense, heavily-researched, 500-page, 1979 academic classic Puritan Boston and Quaker Philadelphia, written by University of Pennsylvania sociologist E. Digby Baltzell (1915–1996). The core of the book is said to be based on some 300 interviews with Proper Philadelphians and Brahmin Bostonians, and part of a decades-long research focus that Baltzell had on his Protestant brethren — he has been sometimes credited with popularizing the “WASP” term.
This is a book that is a fabulous read for understanding Philadelphia and Boston, but it is also a treasure for those who love new perspectives on American culture, U.S. history and the development of cities.