"As Andrew Heath determinedly reminds us, nineteenth-century urban 'consolidators,' like their better-known 'progressive' progeny, took on a gargantuan task of economic and political development. Characters as diverse as conservative Morton McMichael and radical George Lippard recognized that a city's health was intricately bound up with that of the nation and the larger world: even a utopia of private homes would need direction and continuing steerage from above. Treating Philadelphia's Consolidation Plan of 1854 as a kind of municipal bourgeois revolution, Heath turns a local conflict into an instant, urban history classic." (Leon Fink, University of Illinois, Chicago) "Cities don't expand automatically. Certainly Philadelphia's nineteenth-century 'consolidation' of surrounding suburbs was neither automatic nor simple. Andrew Heath's dense and intriguing study demonstrates the complex, often contested, story of a major U.S. city's acquisition of adjoining communities-and the broad import of that story. For Heath skillfully links Philadelphia's evolution to both narratives of contemporary national consolidation and the saga of Paris recast under Baron Haussmann. This is urban history with heft and sweep: a valuable and an important read." (Jonathan Prude, Emory University) "In Union There Is Strength is an impressive work that tells both the story of one of the most important events in the history of Philadelphia-the 1854 consolidation that has defined the city's geographical boundaries to this day-and a story of the United States in the mid-nineteenth century. Andrew Heath brings together an impressive blend of primary and secondary sources, emphasizing deep research, compelling narrative, and original argument." (Zachary M. Schrag, George Mason University)