The GNU (“GNU's not Unix”) Project turns 20 today. (The Initial Announcement – GNU Project is actually a few weeks older than that).
Call it what you will, Richard Stallman, and GNU and the copyleft idea, are important to our long-run wealth and freedom (as in 'freedom of choice' and 'freedom of action' at least and, it increasingly appears, also as in 'liberty'). Read all about it.
Update: Here are Richard Stallman's thoughts on the occasion.