I never really paid attention, because I thought *my* tech research is what makes wonders obselete. But on page 96 of the manual, it states when *any* civilization researches a tech, that will make my wonder(s) obselete.
If this is right, I've been waiting far too long to research calander when I have the Stonehenge.
Is the manual correct? I guess a good way to tell is see if there are still free obelisks in my cities...
If this is right, I've been waiting far too long to research calander when I have the Stonehenge.
Is the manual correct? I guess a good way to tell is see if there are still free obelisks in my cities...
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