The Smithsonian has just recently extracted Alexander Graham Bell's voice from a 130 year old record!
The inventor of the original telephone, Alexander Graham Bell, recorded his voice onto a wax disc sometime between 1881 and 1886. For the first time, researchers in partnership with the Smithsonian museum have isolated Bell's voice from a collection of 200 other recordings.
Due to the disc's wax composition, researchers couldn't simply stick it on a record player. Instead, they created a digital reconstruction of it and extrapolated the sound waves from that, which is a considerable achievement given it's extreme age and condition. Check out the clip at the link below!