Answer :
''According to levy, Industrial expansion contributed to a significant increase in the urban population of the us over the course of the 19th century (1800s)''.
Cities in the United States expanded dramatically between 1880 and 1900. In the two decades prior to 1900, the population of U.S. cities increased by about 15 million, with the majority of this growth being attributed to the growth of industry.
Immigrants from various countries arrived in large numbers and contributed significantly to the population growth of cities. During this time, there was a steady flow of rural Americans moving to the cities. Nearly 40% of American townships saw population decline between 1880 and 1890 as a result of migration.
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