-
Julio Cervera Baviera visited Marconi's radiotelegraphic installations on the English Channel and worked to develop his own system.
-
Radio telegraphy signals were exchanged regularly with the island of Heligoland over a distance of 62 km.
-
On December 12, 1901, inventor Guglielmo Marconi became the first person in history to transmit signals across the Atlantic Ocean
-
The company Telefunken was founded as joint undertakings for radio engineering in Berlin
-
On Christmas Eve, Reginald Fessenden used an Alexanderson alternator and rotary spark-gap transmitter to make the first radio audio broadcast from Brant Rock, Massachusetts.
-
The first song played over radio was "O' Holy Night" played on a violin by Reginald Fessenden.
-
Marconi and Karl Ferdinand Braun were awarded the Nobel Prize in Physics for "Contributions to the development of wireless telegraphy."
-
In April 1909, Charles David Herrold, an electronics instructor in San Jose, California constructed a broadcasting station. It used spark-gap technology, but modulated the carrier frequency with the human voice, and later music.
-
In 1912, the RMS Titanic sank in the northern Atlantic Ocean. After this, wireless telegraphy using spark-gap transmitters quickly became universal on large ships.
-
In 1916, Harold Power and his radio company AMRAD broadcasted the first continuous broadcast in the world from Tufts University under the call sign 1XE. It lasted 3 hours.
-
Station 9XM at the University of Wisconsin in Madison broadcast human speech to the public at large.
-
8MK began broadcasting daily and was credited by famed inventor Lee De Forest as the first commercial station.
-
In 1920, regular wireless broadcasts for entertainment began in Argentina, pioneered by the group around Enrique Telemaco Susini, and spark gap telegraphy stopped.
-
At 9 pm on August 27, 1920, Sociedad Radio Argentina aired a live performance of Richard Wagner's opera Parsifal from the Coliseo Theater in downtown Buenos Aires. Only about twenty homes in the city had receivers to tune in this radio program.
-
The first college radio station began broadcasting on October 14, 1920 from Union College, Schenectady, New York under the personal call letters of Wendell King, an African-American student at the school.
