Year 1923.
The first regular broadcasts in Germany, Belgium, Finland, Norway, Switzerland, Czechoslovakia and Australia.
8 February: In Italy radio is nationalized by royal decree and placed under the authority of the Ministries of Posts, of the Army, and the Navy. Colombia sets up a Ministry of Posts and Telegraph and an international radio-communication station.
30 June: A French law extends the principle of state monopolyon telegraphic transmissions to the broadcasting and receiving of radioelectric signals.
A private Radio Club is founded in Madras (India).
Japan's minister of communications regulates radio broadcasting by decree and bans radio advertising.
The first Telegraphy experiments are carried out by the Ceylon (now Sri Lanka) Telegraph Service.
First broadcasts in Prague (Czechoslovakia).
First broadcasts by the FinnishRadio Society from Helsinki.
The federal Mexican government authorizes the first commercial radio station.
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