This day in 1887 was one of the great days of popular music.
Emile Berliner who emigrated from Germany to the USA when he was 26 applied for a patent for his invention, the gramophone. This was the first machine to play discs and not the wax cylinders. He solved the problem of getting the turntable to revolve at a steady and measurable rate after teaming up with Eldridge Johnson.
Although he also designed a very (very) early helicopter and a loom suitable for mass weaving his contribution to popular music is what he will be remembered for.
My thanks to Emile, you saved my young life.