when did the radio became a household item
Radio in the United States Until early 1922, there were fewer than forty commercial stations broadcasting. [10] But in mid-1922, the so-called "radio craze" began, when several hundred new stations took to the airwaves, and thousands of people wanted to buy their own radio set. Even President Warren G. Harding had a radio installed in the White House. [11]
Radio-frequency identification The first patent to be associated with the abbreviation RFID was granted to Charles Walton in 1983.[11]