URBANIZATION, RAILROAD MILEAGE, AND INDUSTRIALIZATION
1860
1870
1880
1890
Urban Population (millions)
6.2
9.9
14.1
22.1
Percent of U.S. Population in Cities
20%
25%
28%
35%
Cities Over 10,000 in Population
93
168
223
363
Railroad Mileage (thousands)
30.6
52.9
93.3
166.7
Based on the table, what was an important effect of industrialization in the
United States in the later part of the nineteenth century?