The first radio signal is attributed to Guglielmo Marconi in Italy in 1895. Radio continues today for vital communications and as a platform for democratic discourse. It is the most widely consumed medium worldwide. Reaching diverse audiences, radio is an arena for all voices to speak out, be represented and be heard. 2021 marks the 10th anniversary of World Radio Day and will be celebrated with three main sub-themes: (1) Evolution, radio continuing to evolve, while being resilient and sustainable; (2) Innovation, radio adapting to new technologies to remain the go-to medium of mobility, accessible everywhere and to everyone; and (3) Connection, radio serving society through natural disasters, socio-economic crises, epidemics, etc. UNESCO encourages the importance of radio broadcast and asks participating States to improve international cooperation among radio broadcasters and encourage decision-makers to create and provide access to information through radio, including community radios.
https://en.unesco.org/commemorations/worldradioday/