Spread the word.
I'd do it, but (I hate to admit this) I'm weak on geography and don't actually know the latitude/longitude of MIT. (I was educated in Jefferson Parish, what do you want from me? Y'all are lucky I can read and write -- and, BTW, no thanks to JP that I can. They had nothing to do with that.)
Anyway, MIT is holding a Time Travelers' Convention, and everyone from the future as well as the present is welcome to attend, but we in the present are meant to spread the word so that them in the future can find out about it:
Write the details down on a piece of acid-free paper, and slip them into obscure books in academic libraries! Carve them into a clay tablet! If you write for a newspaper, insert a few details about the convention! Tell your friends, so that word of the convention will be preserved in our oral history! A note: Time travel is a hard problem, and it may not be invented until long after MIT has faded into oblivion. Thus, we ask that you include the latitude/longitude information when you publicize the convention.
You can also make an absolute commitment to publicize the convention afterwards. In that case, bring a time capsule or whatever it may be to the party, and then bury it afterwards.
So get busy, y'hear?
2 hours ago