Battle of Mabila / First commercial transistor radio announced - October 18

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The Battle of Mabila took place on this day in 1540. / On this day in 1954, Texas Instruments announced the invention of the first commercial transistor radio, the Regency TR-1. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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