Ray Saintonge wrote:
Another thing to keep in mind is the three-year limitation for taking action on a copyright violation. If something has been on the site for at least three years it is probably safe to keep. The argument that continuing availability may result in new limitation periods can probably be countered by invoking the doctrine of laches.
However, republishing in another medium, such as publishing a print edition of Wikipedia, probably would easily restart the limitation period.
-Mark