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The metal-based daguerreotype process soon had some competition from the paper-based calotype negative and salt print processes invented by Henry Fox Talbot.
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It was known to exist here but had no practical way to extract it.
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was the first inexpensive industrial process for the mass-production of steel from molten pig iron prior to the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron.
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The First Transcontinental Railroad in the United States was built in the 1860s, linking the well developed railway network of the Eastern coast with rapidly growing California. The main line was officially completed on May 10, 1869.
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Encouraged western settlers by offering acres of public land
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first national labor federation in the United States. Founded in 1866 and dissolved in 1873, it paved the way for other organizations, such as the Knights of Labor and the AFL (American Federation of Labor). It was led by William H. Sylvis.
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Invented by someone else other than Sholes. However, Sholes was the first one to successfully commercialize his product
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power braking system with compressed air as the operating medium.[1] Modern trains rely upon a fail-safe air brake system that is based upon a design patented by George Westinghouse
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U.S. company and corporate trust that held a near monopoly over the U.S. oil industry from 1870 to 1911. The company originated in 1863, when John D. Rockefeller started a Cleveland, Ohio, refining firm, which, with other facilities, was incorporated as the Standard Oil Company in 1870.
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Bell's March 10, 1876 laboratory notebook entry describing his first successful experiment with the telephone. Alexander Graham Bell is commonly credited as the inventor of the first practical telephone.
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The Great Railroad Strike of 1877 started on July 14 in Martinsburg, West Virginia, in response to the cutting of wages for the third time in a year by the Baltimore & Ohio Railroad (B&O).
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Thomas Edison patented -- first in 1879 and then a year later in 1880 -- and began commercializing his incandescent light bulb, British inventors were demonstrating that electric light was possible with the arc lamp.
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The Statue of Liberty arrived at its permanent home on Bedloe's Island in New York Harbor on June 19, 1885, as a gift of friendship from the people of France to the people of the United States.
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The Haymarket affair (also known as the Haymarket massacre or Haymarket riot) was the aftermath of a bombing that took place at a labor demonstration on Tuesday May 4, 1886, at Haymarket Square in Chicago.
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written by Andrew Carnegie in June of 1889 that describes the responsibility of philanthropy by the new upper class of self-made rich.
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The Forest Reserve Act of 1891 is a law that allowed the President of the United States to set aside forest reserves from the land in the public domain. This act passed by the United States Congress under Benjamin Harrison's administration.
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The Homestead Strike, also known as the Homestead Steel Strike or Homestead Massacre, was an industrial lockout and strike which began on June 30, 1892, culminating in a battle between strikers and private security agents
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The Pullman Strike was a nationwide railroad strike in the United States on May 11, 1894. It pitted the American Railway Union (ARU) against the Pullman Company, the main railroads, and the federal government of the United States under President Grover Cleveland.
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in 1901, Carnegie was given the chance to make good on his word when he sold his company to a group of investors headed by J.P. Morgan for $400 million. Carnegie Steel became the centerpiece of U.S. Steel, a trust controlling 70% of the U.S. steel production.
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U.S. company and corporate trust that held a near monopoly over the U.S. oil industry from 1870 to 1911.
