Apple was founded on April Fools' Day in 1976. But in advertising, as in almost everything else, it's been no fool at all. To celebrate the company's 36th birthday, Unruly Media has put together a ranking of the most-shared Apple videos of all time. We've pulled out the ads and product-introduction videos (leaving aside the live events), and below present the 36 most-viral spots the company has done in its history. (Most were created by TBWA\Media Arts Lab.) Clearly, ranking the ads based on sharing favors the more recent work—and yet "1984" and the "Crazy Ones" spot from the "Think different" campaign both make the top four. Beyond that, it's mostly iPhone and iPad spots. Alas, there's nary a Hodgman or a Long in sight. Be sure to check out No. 19 for pure vintage hilarity.