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Pennsylvania's history of human habitation extends to thousands of years before the foundation of the Province of Pennsylvania. Archaeologists generally believe that the first settlement of the Americas occurred at least 15,000 years ago during the last glacial period , though it is unclear when humans first entered present-day Pennsylvania.
The first mass work stoppage in the 195-year history of the United States Post Office Department began with a walkout of letter carriers in Brooklyn and Manhattan, [42] soon involving 210,000 of the nation's 750,000 postal employees. With mail service virtually paralyzed in New York, Detroit, and Philadelphia, President Nixon declared a state ...
Harrisburg has played a critical role in American history during the Westward Migration, the American Civil War, and the Industrial Revolution. For part of the 19th century, the building of the Pennsylvania Canal and later the Pennsylvania Railroad allowed Harrisburg to become one of the most industrialized cities in the Northeast.
The Industrial Revolution altered the U.S. economy and set the stage for the United States to dominate technological change and growth in the Second Industrial Revolution and the Gilded Age. [28] The Industrial Revolution also saw a decrease in labor shortages which had characterized the U.S. economy through its early years. [29]
The former Packard Automotive Plant in Detroit, a recognizable symbol of the decline of the city's once vibrant automotive industry. The term deindustrialization crisis has been used to describe the decline of labor-intensive industry in a number of countries and flight of jobs away from cities.
The effect of industrialisation shown by rising income levels in the 19th century, including gross national product at purchasing power parity per capita between 1750 and 1900 in 1990 U.S. dollars for the First World, including Western Europe, United States, Canada and Japan, and Third World nations of Europe, Southern Asia, Africa, and Latin America [1] The effect of industrialisation is also ...
Allentown, Pennsylvania, one of several centers of 18th and 19th century American industrialization Francis Cabot Lowell, whose Boston Manufacturing Company helped revolutionize American factories. In the mid-1780s, Oliver Evans invented an automated flour mill that included a grain elevator and hopper boy.
At the same time industrialization and the transportation revolution changed the economics of the Northern United States and the Western United States. Heavy immigration from Western Europe shifted the center of population further to the North. Industrialization went forward in the Northeast, from Pennsylvania to New England.