Year 1920.
Broadcasting on a regular daily basis was born in the United States. The First demonstrations of radio broadcasting in Australia . The appearance in France of battery-powered receivers with valves and headphones. The Amsterdam Stock Market (Netherlands) broadcast stock prices and financial news . On 23 February - The Marconi Company organizes a radio-telephone concert (Featuring Dame Nelli Melba) that is broadcasted from Chelmsford (U.K.) and heard in France, Norway, Italy, Persia and by ships on the sea. The British Postmaster General protest against the "Frivolous'' use of public service and suspends broadcast in November. Autumn - Soviet International Broadcasts begins. 2 November - The Westinghouse station KDKA in Pittsburgh announce the victory of Warren G. Harding over James Cox in the American Presidential Election . The First Radio Telegraph (Maracay) services begins in Venezuela.