https://www.detroitnews.com/story/en...it/3343646001/
WWJ wasn't just first in Detroit. Depending on how you slice things, it was the first commercial broadcaster in the U.S., though when it went on the air that Aug. 20 a century back, it was probably picked up by only a few dozen households in possession of what was, at the time, shockingly high-tech radio equipment.
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