In all of this googling of ancient history I came across some interesting, non-related, tangential kind of things:
a basic world history text on the web: Guide to the Past.
The Long Now Foundation, which I've known about, but not in the breadth of their projects.
I like their bax X logo, form the Roman numeral for 10,000, though it seems to me they should have two of them if they're trying to look at the last 10,000 years for the next 10,000.
I like their diagram of 'now', 'nowadays', and 'the long now'.