The microphone

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Who

Emile Berliner, a German-born American Jewish inventor.

When

1877

Where

Washington, D.C., USA

Emile Berliner developed an early carbon microphone in 1877, a key advance that made the telephone practical and later enabled sound recording and broadcasting. Berliner was a Jewish immigrant from Hanover, Germany, who also went on to invent the flat-disc gramophone record.

Sources

Part of “The Gifts of the Jews” — verified Jewish contributions to the world, with sources.