• 1 January – The United Kingdom
Meteorological Office issues its first broadcast
Shipping Forecast, at this time called
Weather Shipping. • 5 January – The
British Broadcasting Company makes its first broadcast of a religious service from a church (
St Martin-in-the-Fields, London, with Rev.
Dick Sheppard). • 15 January – The world's first original adult
radio play,
Danger by
Richard Hughes, is broadcast by the
British Broadcasting Company from its studios in
London. • 5 February – Hourly
Greenwich Time Signal from the
Royal Greenwich Observatory in the United Kingdom is broadcast for the first time. • 8 February – John Joseph Carty, vice-president at
American Telephone & Telegraph Company, speaks on the first nationwide radio hookup in the
United States, between
New York's WEAF,
Washington, D.C.'s WCAP and
Providence's WJAR. He is heard by an estimated fifty million people. • 12 February – President of the United States
Calvin Coolidge makes the first presidential political speech on radio. Broadcast from
New York City, it is carried by five stations. It is listened to by an estimated five million people. • 2 March – MIRAG, the Mitteldeutsche Rundfunk Aktien-Gesellschaft (Central German Broadcasting Co. Ltd), begins radio transmissions from
Leipzig in
Germany. • 28 March – First
British Broadcasting Company broadcast from
Plymouth (station 5PY). • 30 March – The Deutsche Stunde in Bayern GmbH (German Hour in Bavaria Ltd), begins radio transmissions from
Munich in
Germany. • 1 April – SWR, the Südwestdeutsche Rundfunkdienst A.G (South-west German Broadcasting Service Ltd), begins radio transmissions from
Frankfurt am Main in
Germany. • 23 April – First broadcast by King
George V of the United Kingdom, opening the
British Empire Exhibition at
Wembley Stadium. • 2 May – NORAG, the Nordische Rundfunk Aktien-Gesellschaft (Northern Broadcasting Co. Ltd), begins radio transmissions from
Hamburg in
Germany. • 12 May – SÜRAG, the Süddeutsche Rundfunk Aktien-Gesellschaft (South German Broadcasting Co. Ltd), begins radio transmissions from
Stuttgart in
Germany. • 19 May – The
British Broadcasting Company first broadcasts
cellist Beatrice Harrison apparently duetting live with a wild
nightingale in a
Surrey garden; not until 2022 is it admitted that the 'bird' was probably a
siffleur (professional whistler). • 26 May – SFAG, the Schlesische Funkstunde Aktien-Gesellschaft (Silesian Radio Hour Ltd), begins radio transmissions from Breslau in
Germany (modern-day
Wrocław in
Poland). • 4 June – The
British Broadcasting Company first broadcasts
Henry Hall (bandleader), from the
Gleneagles Hotel in Scotland. • 10 June – ORAG, the Ostmarken-Rundfunk Aktien-Gesellschaft (Eastern Marches Broadcasting Co. Ltd), begins radio transmissions from
Königsberg in
Germany (modern-day
Kaliningrad in
Russia). • 2 August – The Deutsche Stunde in Bayern opens its second station, in
Nuremberg. • 15 August – The
British Broadcasting Company's
Hull relay station, 6KH, goes on air. • 27 August –
Unione radiofonica italiana (URI, a predecessor of
RAI),
Italy's first licensed broadcasting company, is formed in
Turin with backing from the
Marconi Company. • 14 September –
2BE Belfast, operated by the
British Broadcasting Company, opens as the first official radio station in
Northern Ireland. • 15 September – Inauguration of Radio Agen in south-west
France; the station is privately owned but supported by the
département of
Lot-et-Garonne. • 6 October – URI begins regular broadcasting from station
1-RO in
Rome. • 10 October – WEFAG, the Westdeutsche Funkstunde Aktien-Gesellschaft (West German Radio Hour Ltd), begins radio transmissions from
Münster in
Germany. • 14 November – Station EAJ-1 Radio Barcelona, the first radio station to receive an official licence from the Spanish government, begins regular broadcasting. • 15 November –
Nederlandse Christelijke Radio Vereniging (NCRV) is established in the
Netherlands. • 30 November – NORAG opens its second station, in
Bremen. • 1 October – RAVAG, the Radio-Verkehrs-Aktien-Gesellschaft (Radio Communication Co. Ltd) – a collaboration between government and private industry – is given responsibility for all radio broadcasting in
Austria. • 12 December – The
British Broadcasting Company's
Swansea relay station in Wales, 5SX, goes on air. ==Debuts==