Wonders becoming obsolete ...

[CF_Civ]

I think I have noticed a big difference in the mechanics of how
wonders become obsolete when a certain tech is discovered:

In Civ1/2, a wonder became obsolete if anyone on the planet
discovered the tech that made it obsolete. This does not seem
to be the case in Civ3 - rather, the wonder becomes obsolete as
soon as _you_ get the tech. So you might want to wait a little
before getting education if you have the great library.

 

[Fossa]

Im fairly sure this isnt true. When I discovered steam power and Japan lost the hanging gardens their biggest city besides the capital fell into turmoil and revolted when it was on my border. Now, maybe they didnt lose the hanging garden but if they didnt somethign went seriously wrong.