If knowing that The Matrix came out 15 years ago doesn’t make you feel old enough, Sony’s iconic Walkman just turned 35.

Cue the nostalgia.

Emerging out of the frustration that then-co-chairman Masaru Ibuka had with bulky portable players, Ibuka asked the section manager of the company’s tape recorder division to have a go at creating a stereo version of Sony’s Pressman.

The result impressed the rest of the Sony mothership so much so, that the “TPS-T2” went into full production shortly after, but needed a sexy name before hitting the market in 1979, and so it became: the Walkman.

Check out the full story on TIME.
(Pictures via Subtraction)