THE GROWTH OF CITIES AND INDUSTRY

Skylines showed the changes in the smokestacks of the factories, the sweeping lines of bridges, and the towers of the skyscrapers. Population statistics show the huge growth of cities in size and density. Chicago, for example, grew from a population of about 100 in 1830 to 1,100,000 in 1890 to 2,185,000 in 1920. Chicago … ................
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