USA HISTORY

Detailed explanation-1: -The invention in the 1850s of the Otis elevator and Bessemer steelmaking process (an inexpensive process for the mass production of steel) created the material means for the rise of tall city buildings, some so tall they were said to scrape the sky-skyscrapers.

Detailed explanation-2: -It was, however, the refinement of the Bessemer process, first used in the United States in the 1860s, that allowed for the major advance in skyscraper construction. As steel is stronger and lighter in weight than iron, the use of a steel frame made possible the construction of truly tall buildings.

Detailed explanation-3: -Stronger and cheaper to produce, steel soon replaced iron in the building industry. By making it cost-effective to build new rail lines, steel enabled the rapid expansion of America’s railroad network. It also made it possible to build larger ships, skyscrapers, and longer, stronger bridges.

Detailed explanation-4: -During the last half of the late 19th century, Chicago proved to be the fastest growing city in the world. Overall, 15.3 percent of Americans lived in cities in 1850. By 1900, that percentage had increased to 39.7, and kept growing.

Detailed explanation-5: -What Goal Was Shared By Both The Knights Of Labor And The American Federation Of Labor? To organize workers To Demand Better Conditions From Employers. In The Late 1800’s, What Factor Contributed To The Growth Of The American Steel Industry?