USA HISTORY

Detailed explanation-1: -Industrial expansion and population growth radically changed the face of the nation’s cities. Noise, traffic jams, slums, air pollution, and sanitation and health problems became commonplace. Mass transit, in the form of trolleys, cable cars, and subways, was built, and skyscrapers began to dominate city skylines.

Detailed explanation-2: -The increasing factory businesses created many more job opportunities in cities and people began to flock from rural areas to large urban locations. Minorities and immigrants increased these numbers. Factory jobs were readily available for immigrants and as more came to the cities to work, the larger the cities became.

Detailed explanation-3: -One of the main reasons for the growth of cities was the Industrial Revolution, which began in England toward the middle of the eighteenth century and then spread to the United States and other parts of Europe. The Industrial Revolution contributed to the rise of factories, creating a demand for workers in urban areas.

Detailed explanation-4: -Immigration in the Mid-19th Century In the 1840s, almost half of America’s immigrants were from Ireland alone. Typically impoverished, these Irish immigrants settled near their point of arrival in cities along the East Coast. Between 1820 and 1930, some 4.5 million Irish migrated to the United States.