[ Well, that answers that question. The construction of his suit and his lack of being stunned by modern amenities says he's probably from not too far out from her own time, but asking that clearly puts him in the same category as practically everyone else here. She can't help but tiredly sigh at the realization. ]

If you're asking that, then we're probably not from the same world. Which, if you didn't know — surprise, there are multiple universes in existence. Endless, probably, but I'm not up on the science side. But basically, in my world, SHIELD was founded shortly after World War II and the public learned aliens are real when they invaded New York in 2012.

[ You'd have to be living in an actual cave to have missed that. ]