By 1972, James Clerk Maxwell, a Scottish physicist, put forward his theory concerning radio waves.  He showed how they might work.  By 1885, the American Telephone and Telegraphy Company (ATT) came into existence, capitalizing on  the commercial usage of the telegraph and the telephone.  It however, took Heinrich Hertz, to show what the real radio waves were like, that we have come to know today.

It is unclear who has been the first radio voice, but most historians tend to think that Nathan B. Stubble of Murray, KY, holds that distinction.  By 1835, Guglielmo Marconi had improved on telegraphy by sending messages over considerable distances that came to replace the undersea cables to Europe.  It was he, that in 1901, that transmitted the letter “S” across the Atlantic Ocean.  Five year later, Marconi’s feat was followed by Reginald Fessenden that broadcast voice and music with his alternator at Brant Rock, MA, singing, reading from the bible, and playing a violin, according to Gleason Archer in the History of Radio to 1926 (1939), and Erick Barnouw in A Tower of Babel (1966).

In 1907, Le DeForest took out a patent on the audion tube.  Three years later in April, “Doc” Charles Herrold began broadcasting from the Garden City Bank Building in San Jose, CA, and started a college named the Herrold College of Wireless and Engineering.

The Wireless Ship Act of 1910 was passed by Congress.  It required all ocean going vessels traveling over 200 miles with over 50 passengers, to be equipped with a wireless radio able to communicate with other vessels, and shore stations. Wireless was put to work when the “unsinkable” Titanic hit an iceberg.   

Around 1913, there were about 1,000 radio transmitters operating in the United States.  During this period of experimentation, Herrold and his students broadcast music and talk.  In 1914, Herrold’s child, first cries, were aired to a spellbound audience.

It was in 1915, that David Sarnoff came to write his famous “music box” memo, in which he envisioned radio being used for entertainment purposes.  When WW1 broke out in 1917, there were close to 9,000 radio transmitters in operation.  The Radio Corporation of America (RCA) was established in 1919, and the first radio station KDKA, in Pittsburgh, PA, came into business, one year later, and broadcast the Harding-Cox presidential race.  The first radio network began in 1922.  It consisted of WGY in Schenectady, NY, and WJZ in Newark, NJ.  RCA sold $11 million worth of receivers. AT&T’s WEAF broadcast its first commercial program.

By 1924, there were more than 500 stations broadcasting locally.  AT&T built a six station network around WEAF.  By 1925 receiver sales had jumped to $50 million.  By 1926, the National Broadcasting Corporation (NBC) began programming on its Red and Blue networks.  

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During the early 1920s, there was much chaos because the frequencies were crowded, and amateur and professional broadcasters changed them at will.  This happened during the Progressive Era, so a Secretary of Commerce was assigned to regulate the wavelengths.  In the Congressional Report of 1927, it was stated that by 1926, there were over 15,000 amateur radios, some 2,000 ship stations, and about 500 broadcast stations.  Broadcasting was seen as serving in “the public interest, convenience, and necessity.”  

In 1928, William S. Paley purchased a floundering network named it the Columbia Broadcasting System (CBS).  The show “Amos ‘n’ Andy became this network’s famous hit that appealed to a mass audience.

By 1929, newspaper columnist Walter Winchell turned to radio.  Sales of radio reached an all time high of $19 million by the time of the Wall Street crash, and CBS was operating in the black.  By the end of the 1920s, there were now in place the following radio networks, AT&T, NBC Red & Blue, and CBS.  

 Humans have always communicated with each other. After the electricity had been invented, it was possible for the Morse and others that work on the telegraph. The speed of the telegraph was to drop Pony Express, pigeons and smoke signals, for now, there was keen masts along the railway tracks and at every railway station, could receive or send messages.

Prize in 1856 for sending messages was approx. 40 cents for 15 words.

In the late 19th century came the wireless telegraph (radio wave) which we can thank for Guglielmo Marconi. Until then, ships had only been able to communicate closely on land or close to other ships. The wireless telegraph also used Morse code to send messages.

Probably the most famous Morse signal is enough SOS (… — …) as the Titanic when it sent aid into an iceberg and as everyone knows and does help. Today when we speak over the radio or telephone use is also May Day comes from the French “M’aidez” and does help me. Another interesting thing about Morse code is that you can also use sound, light or flags to send signals.

 
You can compare the telegraph to today’s email to the email computer also communicate with signs, it is obviously much faster than Morse code, but the principle of communicating the same speed is the same. But the difference between e-mail and the telegraph is that everyone can send an e-mail if we have learned to read and write and have a computer available. To use the telegraph, you should be trained to send and understand the codes and it was only such military and postal services were trained. Millions of people have up to several computers at home and sends e-mails every day. It is also cheaper.

But the Internet (and thus e-mails) would not exist if no electricity and the telegraph was invented and further developed by various scientists