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Advancements in radio technology continue with the integration of smart speakers and AI.

XM Satellite Radio launched as one of the first satellite radio services.

The first public demonstration of a working transistor radio.

The Radio Broadcasting Preservation Act was passed in the United States.

Norway became the first country to switch off FM radio and move entirely to digital radio broadcasting (DAB).

The Armstrong FM Radio Controversy and ensuing legal cases.

The wide adoption of FM stereo broadcasting.

The first commercial radio broadcast aired.

Edwin Armstrong invented frequency modulation (FM) radio.

The launch of the first satellite radio broadcast by the United States.

Marconi transmitted the first transatlantic radio signal.

National Public Radio (NPR) launched its smartphone app.

Guglielmo Marconi sent the first radio signal.

HD Radio was officially selected by the US's Federal Communications Commission (FCC) as the digital radio standard.