Cities grow and change. Cities Grow and Change Guided Reading Activity.
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Urbanization is the rapid growth of city populations. In the United states, urbanization characterized the period between the 1870s and the 1920s – when immigrants and a changing economy resulted in an explosion of urban growth. The United States changed from a nation of mostly rural, agricultural people to a nation of large urban and industrial centers.Urbanization
When Henry Bessemer invented a process to purify steel by blasting out the imperfections in iron ore with oxygen bursts, companies like Andrew Carnegies were able to produce more steel than ever before – and a higher quality of steel, too. Soon, using steel as a skeletal framework for structures, skyscrapers were built in downtown metropolitan areas.steel
The elevator was not perfected until Elijah Otis created the elevator braking system. Once it was perfected, though, skyscrapers became practical and began to recreate urban landscapes. The New York City skyline, including the Empire State Building and the Chrysler Building, is still one of the most recognizable in the United States – and in the world for that matter.Elevators
Reportedly started when Mrs. O’Leary’s cow accidentally kicked over the lantern used for milking, the Great Fire of 1871 was fanned by high winds and eventually engulfed all of downtown Chicago in flames. Tightly packed neighborhoods crowded with tenement buildings, trash, and debris lit up rapidly, as winds carried flames across buildings’ rooftops. By the end of the day, over 300 men, women, and children had perished, and over 18,000 were homeless.The Chicago Fire of 1871