C'mon, guys! Read the damned article ... it explains all of the various editions, versions, edits, translations ... and the tangle of various national copyright laws involved.
Or shall we just sit here scratching our butts and making wild-assed guesses off the top of our stupid heads?
Actually, the only point I personally give a damn about is that fact that copyright in the US is, for all practical purposes, eternity and a day! (Yeh, I know what it reads, but a good lawyer [read: Disney Corp] can get that copyright extended for another century.)
Damned little will ever be hitting the public domain in the United States, which means that private corporate interests will have a lock on our cultural heritage. It bugs the hell out of me. I don't know about you guys, but I'm old enough to remember the gift of literature and libraries and public domain that enriched us while growing up.