First known recording of human voice (9-4-1860)

Recorded on the Phonautograph, an invention of Édouard-Léon Scott de Martinville (Frenchman of Scottish ancestry).
The device used a boar's bristle attached to a vibrating membrane. It scribed its vibrations onto a surface coated with lampblack.
Scott de Martinville hoped to invent a playback mechanism, but never did. Fortunately a few of his recordings survived, and in 2008 some smart fellas in California managed to get a voice from the tracings: probably Scott de Martinville himself singing (very slowly) the first few notes of "Au clair de la lune".
Hear it here:
https://www.youtube.com/watch?v=_dbyIDTmHSM
and another version (at wrong speed?) here:
https://www.youtube.com/watch?v=WpXNqdEUhWY
Much more:
https://en.wikipedia.org/wiki/%C3%89douard-L%C3%A9on_Scott_de_Martinville
https://en.wikipedia.org/wiki/Phonautograph
http://www.firstsounds.org/