A quibble, but you can argue that the US is one of the world's oldest nations, as it has a continuity that most places lost in the last hundred years or so. "Germany" might be old, in one sense, but in another there were several Germanies of about one generation each during the 20th century.I think America being a young nation
Erm...is it an uniquely US thing? Do we not see this in Canada, New Zealand, Australia etc? Serious, if off-topic question. I guess you could say that those nations never rebelled from the UK, so they can claim UK history or something in a way that the US can't.So yeah point is, it's a very uniquely american take to only start counting history from a more recent starting point,
Of course, getting rather off topic here.