Heard about this way back when in university in a freshman psych or sociology class. The results are interesting of course, but I seem to recall the prof saying these types of experiments on children are now considered unethical.

(The children never gave their consent to be used as the teacher's lab rats. Moreover, the teacher had no idea if there would be lasting effects.)

A time-line of the death of the Ancient Games (from Tony Perrottet's "The Naked Olympics: The True Story of the Ancient Games", p 190-191):

http://www.amazon.com/Naked-Olympics-Story-Ancient-Games/dp/081296991X/ref=sr_1_3?ie=UTF8&s=books&qid=1221384630&sr=8-3

312 A.D. Emperor Constantine makes Christianity the official religion of the Roman Empire; as paganism fades, the prestige of Olympia declines rapidly.

394 A.D. Emperor Theodosius I bans all pagan festivals. The Olympics are officially disbanded -- although archaeologists now suggest they kept going in some form, perhaps in Christian guise.

426 A.D. The Temple of Zeus [at Olympia] is burned on the orders of Theodosius II. Christian fanatics destroy the rest of the sanctuary.

522 A.D. The first of a series of devastating earthquakes hits Olympia.