Radio today has changed in many different ways from the time since it first started. In many ways, it all has to do with the technological changes and innovations it has gone through throughout the years. For instance, these changes have allowed the radio industry to transform itself from a wireless telegraph transmitter into a worldwide entertainment business with a broader audience.
Dating back to 1896, radio first started out as a “wireless telegraph” that transmitted Morse code signals. Guglielmo Marconi created it with the sole purpose to transmit telegraphed signals to places in which telegraph wires were not able to function. This type of media technology was then strongly adopted by the military, thus, making radio only government operated. However, after realizing the strong potential that the radio had for transmitting information through long distance, it soon became the interest of David Sarnoff to bring radio into American households as a form of entertainment. This new form of radio technology know as a “Radio Music Box” brought forth music, news, sports, and soap operas to American households. 
Overall, technological changes strongly affected the evolution of the U.S radio system in the 1920s. Such technological inventions that helped influence change were the creation of the “vacuum tubes” in 1906 by Lee de Forest. This creation brought and allowed the transmission of radio sounds, music and voice, in which later on facilitated the development of the radio in the 1920s. As a result, many radio stars were born and many active listeners began to be readily informed about important news and music across America. 
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