Allegheny City, known today as Pittsburgh's North Side, was the third-largest city in Pennsylvania when it was controversially annexed by the City of Pittsburgh in 1907. Dan Rooney, longtime North Side resident, joins local historian Carol Peterson in creating this highly engaging history of the cultural, industrial, and architectural achievements of Allegheny City from its humble beginnings until the present day. The authors cover the history of the city from its origins as a simple colonial outpost and agricultural center, to its rapid emergence alongside Pittsburgh as one of the most important industrial cities in the world and an engine of the American economy. Supplemented by historic and contemporary photos, the authors take the reader on a fascinating and often surprising street-level tour of this colorful, vibrant, and proud place.