The document contains 5 images showing aspects of urbanization and immigration in the United States between 1870-1920. Image A depicts the growth of major US cities from 1790 to 1900. Image B shows the expansion of a city from a small town to a large urban center. Image C pictures immigrants arriving and being processed at Ellis Island. Image D portrays the expansion of the railroad network across the US in 1880. Image E displays overcrowded living conditions in a tenement building from this time period.