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A timeline of United States inventions (1890–1945) encompasses the innovative advancements of the United States within a historical context, dating from the Progressive Era to the end of World War II, which have been achieved by inventors who are either native-born or naturalized citizens of the United States.
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 1991), after the dissolution of the Soviet Union
Timeline of United States inventions (1890–1945) Timeline of United States inventions (after 1991) 0–9. 2-in-1 laptop; 8-track cartridge; 19-inch rack; 90 nm ...
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.
1945: Willard Libby began his work on radiocarbon dating. He published his paper in 1946, [ 482 ] [ 483 ] a second paper in Science in 1947. [ 482 ] [ 484 ] Libby and James Arnold succeeded with the radiocarbon dating theory after results were published in Science in December 1949.
The modern-day provisions of the law applied to inventions are laid out in Title 35 of the United States Code (Ch. 950, sec. 1, 66 Stat. 792). From 1836 to 2011, the United States Patent and Trademark Office (USPTO) has granted a total of 7,861,317 patents [ 7 ] relating to several well-known inventions appearing throughout the timeline below.
Timeline of United States inventions (1890–1945) Timeline of United States inventions (after 1991) Timeline of United States inventions (before 1890) A. Allaire ...
The net effect of the many changes from the 1880 census: the larger population, the data items to be collected, the Census Bureau headcount, the scheduled publications, and the use of Hollerith's electromechanical tabulators, was to reduce the time required to process the census from eight years for the 1880 census to six years for the 1890 ...