Can anyone explain the origin of the practice of yelling "Geronimo" when parachuting from a plane?
closed as general reference by simchona♦, Lynn, cornbread ninja 麵包忍者, Mitch, Daniel δ Jun 25 '12 at 20:34
This question is too basic; it can be definitively and permanently answered by a single link to a standard internet reference source designed specifically to find that type of information. See the FAQ for guidance on how to improve it.
This wikipedia article says: