When the first MP3 was introduced at the CeBIT show in Hannover, Germany 20 years ago. http://reddit.com/r/Bitcoin/comments/9kjq0m/when_the_first_mp3_was_introduced_at_the_cebit/
@bitcoinedu I encoded my first MP3 in 95/96 using SoundEdit 16 and Macromedia Director. It was right around the same time I burnt my first ~$5 CD.
What are the kids up to these days? ICOs?