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RSI originated in the anesthesia literature to prevent aspiration in unprepped patients undergoing general anesthesia. From the first anecdotal reports of p-RSI in 1972, prehospital intubation has matured into widespread use. The often conflicting outcome data underscored the need to standardize the approach to p-RSI.
On 27 August 1920, regular wireless broadcasts for entertainment began in Argentina, pioneered by the group around Enrique TelÃ©maco Susini, and spark gap telegraphy stopped. On 31 August 1920 the first known radio news program was broadcast by station 8MK, the unlicensed predecessor of WWJ (AM) in Detroit, Michigan.