In the 2011 superhero movie X-Men: First Class,
Wolverine has a cameo while, in my own words, Magneto and Prof X are out recruiting X-Men.
This leads me to wonder the exact time and place the above cameo scene takes place. Wolverine looks worried about something (he seems busy with his own problems) and the events of X-Men Origins : Wolverine either haven't happened yet or are happening as they speak.
The following are the possibilities I've come up with:
Wolverine is still a soldier for the U.S. army and only about to be deployed to Vietnam along with his brother. He is anxious and getting ready for the war.
Him and Victor were deployed in 1961, and Victor has already killed his senior officer causing both Wolverine and him to be shot at by a firing squad and then after they survived that, put in confinement. Then, it is plausible that the above scene sees a Wolverine in the beginning years of his commitment to Stryker's Team X.
Watching the movies didn't exactly help since X-Men are famous for screwing up continuity:
More or less a decade after the events of First Class, according to Origins, Wolverine gets his trademark adamantium claws and engages on a full on attack on Victor and Stryker on Stryker's Island. During this time (1970s), Origins show Emma Frost as Sivertail's teenage sister (nix psychic powers) as opposed to the seductress we see working with Shaw in First Class. (sources now say they are different unrelated people) Then, we see a CGI young Patrick Stewart version of Charles Xavier with working legs save the young mutants from Stryker's island which conflicts with him being confined to a wheelchair back in 1962 as seen in First Class.
All this makes things confusing.
This question also extends to what Wolverine was doing in the 1970's when X-Men: Days of Future Past happened. He seemed like he wasn't doing anything.
So, what was Wolverine doing in the 1960's and 1970's? Answers from all earth's similar to the movie universe (which earth is that btw) are welcome :D