Seems that you are more correct than I was. A quick look at a timeline built by the Fallout Wiki suggests that the vaults didn't start construction until 2050. I guess hearing all of the older style music and tech made me assume that the events happened sooner rather than later. The main events of the games do take place a few hundred years in the future.(oh my word autocorrect garbled my post! There's a bug if you use bluetooth keyboards with the iOS beta. It doesn't underline incorrect spellings but autocorrects some things - but not others, and sometimes removes the final word in a sentence if you add a period using double-space)
See! I don't know how much of the lore is set in the Fallout games but I always imagined (I've only played a bit of 3 and New Vegas) it taking place hundreds of years into the future where society froze itself in the 1950's. Is that the case?
I've only played a bit of 3 myself, but I know my little brother and cousin have played through 3, New Vegas and 4, with my little brother returning to the originals as well. After I move and I get some free time back, I'll be back to investing time in Bethesda's games, starting with FO3 and Skyrim. =D