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.
Between 1920 and 1945, following the war, radio emerged as a pioneering electronic mass communication channel that utilized radio waves to broadcast to a broad audience. During this period, radio played a crucial role in making timely news and entertainment accessible to the masses.