I think I've only heard generations specifically named in our North American English-speaking culture, but I think it is a very useful idea anywhere in the mode

I think I've only heard generations specifically named in our North American English-speaking culture, but I think it is a very useful idea anywhere in the modern world where everything is completely different every 20 years. One very obvious generational divide that applies to much of the world is between those that remember WWII and those that don't. Those involved in the Vietnam War (or the American War, as it is known in Vietnam) also share a (horrifying but bonding) experience that they do not share with later generations.