If you think of records as platters, you are of a certain age. If you don’t remember records at all, you are even younger.

That changed in 1877 when Thomas Edison unveiled his phonograph ... Within a few years, entrepreneurs began putting phonograph recordings—mostly on wax cylinders—into “coin-in-slot ...

On December 7, 1877 Thomas Edison demonstrated his phonograph at the New York City offices of the nation's leading technical weekly publication, Scientific American. The following report set off ...