I took a graduate seminar a couple of semesters ago with David Young, one of the world's foremost scholars on the Olympic games, both ancient and modern. There are some points I would like to address.

The penis restraints were not worn for prudish reasons: they were worn to keep the penis from flapping and causing pain while an athlete ran.

Also, though women were officially banned from the games, in practice they probably did attend.

Furthermore, Christianity was responsible for the end of the original Olympics, but they were, in fact, a religious festival honoring Olympic Zeus. It's unfortunate that that tradition was lost, but don't get too busy bashing Christianity and forget that the only reason Latin and Greek poetry, drama, comedy, and rhetoric survive is because Christian monks cared enough to preserve the works of Plato, Aristotle, Cicero, Vergil, Catullus, Homer, and numerous others, even in the face of the numerous conflicts that occurred between the fall of the Roman Empire and the Renaissance, including Moorish invasions, Genghis Khan, the Viking menace, and the ubiquitous political upheavals (this from a non-Christian, by the way).