KnowraPhiladelphiaLinked fromLinked fromThe 33 pages that link to Philadelphia, each with the reason it gives.All 33Broader topic 5Related 22Narrower topic 4Compared with 2BostonCompared with: Philadelphia shared Boston’s revolutionary importance but became a different kind of national center.BaltimoreCompared with: Both are historic Mid-Atlantic port cities, but Philadelphia is larger and lies in another state.