So I know that this was a while ago now, but I just stumbled across the event I made for it – Facebook’s 10th Birthday. (That’s a witty and imaginative name right there.)
I made this event as a joke to send to my colleagues – we sit on Facebook all day as a job, so why not wear hats and do the same thing? Anyway, despite only inviting a handful of friends, when the day came, randoms were clicking ‘attending’ on the event and using the wall as a place to congratulate the network on 10 years of great work, and posting lots of pictures of cake.