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The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War; Timeline of United States inventions (after ...
Official credit for the invention of the electric trolley pole has gone to an American, Frank J. Sprague, who devised his working system in Richmond, Virginia, in 1888. [270] Known as the Richmond Union Passenger Railway , this 12-mile system was the first large-scale trolley line in the world, opening to great fanfare on February 12, 1888.
This invention was only primarily used with steam locomotives that had booster valves or superchargers to heat the fire even hotter to produce extra power. The coal used was semi-bituminous and bituminous coal only inside the steam locomotives. Sadly, this invention lasted until 1960 when Diesel's fully replaced American railroads. 1943 Slinky
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
A timeline of United States inventions (after 1991) encompasses the ingenuity and innovative advancements of the United States within a historical context, dating from the Contemporary era to the present day, which have been achieved by inventors who are either native-born or naturalized citizens of the United States.
The timeline of historic inventions is a chronological list of particularly important or significant ... independently invented in Pre-Columbian South America, ...
Category: American inventions. 53 languages. ... Timeline of United States inventions (1890–1945) Timeline of United States inventions (after 1991) 0–9. 2-in-1 ...
Many Native American contributions to our modern world often go unrecognized, according to Gaetana DeGennaro, a museum specialist at the Smithsonian National Museum of the American Indian.