After the war, in the years 1920 to 1945 radio became the first electronic mass medium by using radio waves to broadcast to a vast audience. In its early years radio introduced the masses to immediate news and entertainment.
Following the war, from 1920 to 1945, radio became the first electronic mass medium for disseminating information through radio waves to a vast audience. In its early years, radio served as a platform for sharing news and entertainment with the general public.