Answer:
In the early 1900s, the United States entered a period of peace, prosperity, and progress. In the nation's growing cities, factory output grew, small businesses flourished, and incomes rose. As the promise of jobs and higher wages attracted more and more people into the cities, the U.S. began to shift to a nation of city dwellers. By 1900, 30 million people, or 30 percent of the total population, lived in cities.
The mass migration of people into the cities enriched some people but caused severe problems for others. For the emerging middle class, benefiting from growing incomes and increases in leisure time, the expanding city offered many advantages. Department stores, chain stores, and shopping centers emerged to meet the growing demand for material goods. Parks, amusement parks, and baseball stadiums were built to meet aesthetic and recreational needs. Transportation systems improved, as did the general infrastructure, better meeting the increased needs of the middle and upper class city dwellers.
Thousands of poor people also lived in the cities. Lured by the promise of prosperity, many rural families and immigrants from throughout the world arrived in the cities to work in the factories. It is estimated that by 1904 one in three people living in the cities was close to starving to death. For many of the urban poor, living in the city resulted in a decreased quality of life. With few city services to rely upon, the working class lived daily with overcrowding, inadequate water facilities, unpaved streets, and disease. Lagging far behind the middle class, working class wages provided little more than subsistence living and few, if any, opportunities for movement out of the city slums.
To find additional documents in Loc.gov on this topic, you might consider conducting searches using such terms as urbanization, urban immigrants, progressivism, and the names of individual cities such as Cincinnati, St. Louis, Philadelphia, and New Orleans.
Docments
The Lure of the Past, the Present and Future
A Trip to the City, or At the Phone Booth
General Comments on the Progress of Los Angeles
The San Francisco Earthquake of 1906
Progressive Reforms Affected Cities in Many Ways
Photo Collage of New York City in the Early 1900s
Dakota Apartment House
A Monday Washing, New York
Lower East Side Ghetto
Shoppers on Sixth Avenue
Family in Attic Home with Drying Laundry
Italian Neighborhood Mulberry Street
Photographs of Urbanization
The New York Ghetto: Hester Street, 1902
Armour Boulevard and Holmes Street, Kansas City, 1909
Canal Street, New Orleans, ca. 1900-1910
Broad Street, Richmond, Virginia, 1905
Main Street, Dayton, Ohio, 1904
Main Street, Kansas City, ca. 1900-1910
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