Why are there so many Olympic medals for swimming?

Copying this from another forum I frequent. I've wondered this myself, maybe someone here has the answer. Original thread: www.flyertalk.com/.../showthread.php ------------------------------------------------------------------------ Why isn't "swimming" a single event like "gymnastics" is? I mean, you can get medals for the 100m butterfly, 400m relay, 200m backstroke (I don't know, I'm making those particular examples up); but the gymnasts don't get separate medals for hoops, uneven bars, floor exercise, etc.