Radio: Voice of the era Radio is a media that uses radio waves to transmit sound. Radio allows you to listen to music, news, information programs, sports broadcasts and other programs. History of the radio The radio was invented at the end of the 19th century. The first radio broadcasts were experimental and could be accepted only at a short distance. In the 1920s, the radio became a massive means of information. In those days, the radio broadcasts were mainly black and white and had a small ...