George Mortimer Pullman (March 3, 1831 – October 19, 1897) was an American inventor and industrialist. He is known as the inventor of the Pullman sleeping car, and for violently suppressing striking workers in the company town he created, Pullman (which was later annexed and absorbed by Chicago, becoming a neighborhood).2.-George Westinghouse (October 6, 1846–March 12, 1914) was an American entrepreneur and engineer who invented the railway air brake and was a pioneer of the electrical industry. Westinghouse was one of Thomas Edison's main rivals in the early implementation of the American electricity system. Westinghouse's system, which used alternating current based on the extensive research by Nikola Tesla,ultimately prevailed over Edison's insistence on direct current. In 1911, he received the AIEE's Edison Medal 'For meritorious achievement in connection with the development of the alternating current system light.
Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor, scientist and businessman who developed many devices that greatly influenced lifearound the world, including the phonograph, the motion picture camera, and a long-lasting, practical electric light bulb. Dubbed "The Wizard of Menlo Park" (now Edison, New Jersey) by a newspaper reporter, he was one of the first inventors to apply the principles of mass production and large teamwork to the process of invention, and therefore is often credited with the creation of the firstindustrial research laboratory.
4.- James J. Hill
James Jerome Hill (September 16, 1838 – May 29, 1916), was a noted Canadian-American railroad executive. He was the chief executive officer of a family of lines headed by the Great Northern Railway, which served a substantial area of the Upper Midwest, the northern Great Plains, and Pacific Northwest.
5.- Henry Clay Flick
Henry Clay Frick(December 19, 1849 – December 2, 1919) was an American industrialist and art patron, once known as "America's most hated man". Frick was born in West Overton, Westmoreland County, Pennsylvania, U.S., a grandson of Abraham Overholt, the owner of the prosperous Overholt Whiskey distillery (see Old Overholt). Frick's father, John W. Frick, was unsuccessful in business pursuits. Henry Clay Frickattended Otterbein University for one year, but did not graduate. In 1871, at 21 years old, Frick joined two cousins and a friend in a small partnership, using a beehive oven to turn coal into coke for use in steel manufacturing, and vowed to be a millionaire by the age of thirty. The company was called Frick Coke Company. 
Cornelius Vanderbilt (May 27, 1794 – January 4,1877), also known by the sobriquet Commodore, was an American entrepreneur who built his wealth in shipping and railroads and was the patriarch of the Vanderbilt family. Though Vanderbilt had relinquished his presidency of the Stonington Railroad during the California gold rush, he took an interest in several railroads during the 1850s, serving on the boards of directors of the Erie Railway, theNew Jersey Central, the New Haven and Hartford, and the New York and Harlem (popularly known as the Harlem). In 1863, Vanderbilt took control of the Harlem in a famous stockmarket corner, and was elected its president. He later explained that he wanted to show that he could take this railroad, which was generally considered worthless, and make it valuable. It had a key advantage: it was the onlysteam railroad to enter the center of Manhattan, running down 4th Avenue (later Park Avenue) to a station on 26th Street, where it connected with a horse-drawn streetcar line. From Manhattan it ran up to Chatham Four Corners, New York, where it had a connection to the railroads running east and west.
7.- Andrew Carnegie
Andrew Carnegie (properly pronounced /kɑrˈneɪɡi/, but commonly...
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