Radio Day

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Radio Day
Radio Day
Also called	Communications Workers' Day (in Russia), Radio and Television Day (Ден на радиото и телевизията, in Bulgaria)
Observed by	Soviet Union, Russia, Bulgaria
Date	7 May
Next time	7 May 2025 (2025-05-07)
Frequency	annual

Radio Day^[1] (Russian: День радио, Den' Radio), Communications Workers' Day (as it is officially known in Russia) or Radio and Television Day (Bulgarian: Ден на радиото и телевизията, as it is known in Bulgaria) is a commemoration of the development of radio in Russia. It takes place on 7 May, the day in 1895 on which Alexander Stepanovich Popov demonstrated a radio based lightning detector.