It took some work to find the oldest page on the site, but here it is, tucked away after nearly 13 years of zero updates. Not surprisngly, American Diplomacy is still being published to this date (and can be found here in modern form). Still, this site looks great and has content to boot.
*As a sidenote, the page source code mentions Adobe GoLive 4, which was released in 1999, suggesting that the site was re-uploaded that year.