Generations are a rough classification. Generation X is between 1965 and 1980 as the more used subdivision, but of course the changes aren’t abrupt, and more important the subdivision is USA-centric.
Now there are world wide events that are almost equal for all the world, like the end of WWII in 1945, the building of Berlin wall in 1961, the fall of the Berlin wall in 1989, the crash of 2008, but other events are different for every nation. A Gen Xer in USA didn’t have to fear for the Troubles like in UK or the Strategy of Tension in Italy with a terrorist putting bombs in stations an the like.
