No major distance record has fallen since 1978. The sport has become more international I do not mean to browbeat smaller nations who have fallen upon hard times in some isolated respects. Rather, it's fitting to point out, as we approach the Sydney Games, that empires rise and fall as part of the natural cycle in all things human. Dig out your old history books if you need a reminder. The Roman Empire is showing no signs of a comeback.
Traditions die with great coaches.
Situations change with economies and politics. Perhaps more importantly, the sport has gradually been internationalized since its early days. Information are applicable to this site.