People love to celebrate birthdates for the sake of celebration, a bit of history, and a few beers. And in the case of the first triathlon, TriHistory.com is guilty of this charge.  Forty years to the hour after 9/25/74, when forty one participants gathered on those boggy and incomplete shores of Mission Bay, a bunch of us gathered and drank beer. And celebrated our locally-global history. Much ballyhoo was awarded San Diego’s Fiesta Island; the group back-slapping each other…damn we were young and bitchin’ then. So prescient, so tan.