The document discusses the Gilded Age in the United States from the 1870s to the 1890s. It describes the rise of political machines in cities during this time period. Political machines offered services and favors to citizens in exchange for votes and power. While some bosses, like Roscoe Conkling, used the system to help citizens, others engaged in corruption through practices like kickbacks. The document also discusses the large number of immigrants who came to the U.S. during this time to work in factories under difficult conditions and often relied on political machines to help meet their needs.