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April 26 – Dr. Michael R. Harrison of the University of California, San Francisco, performs the world's first human open fetal surgery. June 5 – AIDS pandemic begins when the United States Centers for Disease Control and Prevention reports an unusual cluster of Pneumocystis pneumonia in five homosexual men in Los Angeles.
1981 California elections (1 P) L. 1981 in Los Angeles (13 P) S. 1981 in San Francisco (2 P) 1981 in sports in California (3 C, 78 P) Pages in category "1981 in ...
1974: The lithium-ion battery is invented by M. Stanley Whittingham, and further developed in the 1980s and 1990s by John B. Goodenough, Rachid Yazami and Akira Yoshino. It has impacted modern consumer electronics and electric vehicles. [509] 1974: The Rubik's cube is invented by Ernő Rubik which went on to be the best selling puzzle ever. [510]
In May 1981, William A. Brastad was awarded a patent for a product he invented three years earlier. His invention, the microwave popcorn bag, incorporated kernels, butter, and spices in a folded ...
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 polarizing McDonald's sandwich is turned 43 this year, having made its debut as a test item in 1981. As history has shown, the saucy, sloppy seasonal staple has developed a devoted fan base ...
October 1981 was the highest month of sales for DMC with 720 vehicles sold but by December, the US was falling into recession and interest rates were rising which further negatively impacted sales. Despite this, instead of reducing production, John DeLorean doubled production output, further adding to the inventory of unsold cars.
1981 in the United States: 1981 in U.S. states and territories ... The 5.9 M w Westmorland earthquake shook the Imperial Valley of California with a maximum Mercalli ...