You may enjoy this NY Times interactive Flash map quite a bit.
Slide the year-pointer to see which regions won lots of metals. It's fun to keep an eye on a pair of rivals (e.g. France and England) and watch how the power shifts, year by year. Also of interest:
- Surprisingly old: Japan was bringing home plenty of gold all the way back in the 30’s.
- Very new: The Caribbean nations sprinting dominance didn’t put them on the map until this decade.
- Non-starters: Except for Kenyan marathoners, the entire contintent of Africa is invisible.
- Glad to forget: The sum power of the Communists buried the USA in medal counts every year.

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