Celebrations were held in many parts of the world. Some places had presentations, hackathons, drink, cake and it was all registered with cameras, video but ... in Amsterdam we had something special. So find that old 3D goggle and have a look at the public of the official part of the party.
Quistnix experiments with 3D photography and this IS the kind of thing that you can expect on a Wikipedia happening..
So what was out of the ordinary at your party ??