"Hello, and welcome to Munich, for the 27th Silly Olympiad, an event held traditionally every 3.7 years, which this year has brought together competitors from over 4 million different countries. And here we are at the start of the first event of the afternoon: the second semifinal of the 100 yards for people with no sense of direction ..." -- John Cleese (b. 1939-10-27), in the Monty Python "Silly Olympics" sketch, which first aired 1972-01-02, making today a multiple of 3.7 years since then. (The next time would be 2012-09-14.)