Some folks at MIT are holding a time-traveler convention. The idea is to make it so famous and so widely-known that even thousands of years in the future, people will still know exactly when and where this time-traveler convention went down, and will all come travel to it at some point in their illustrious time-traveling careers.
Yeah, like they'd all want to come to the party in the 21st century. There won't even be any frigging butter pie!
The Time Traveler Convention
May 7, 2005, 10:00pm EDT (08 May 2005 02:00:00 UTC) East Campus Courtyard, MIT 42:21:36.025°N, 71:05:16.332°W (42.360007,-071.087870 in decimal degrees)