As someone who has seen a few of the officially designated “decades” come and go, starting with the 40’s, I have had some trouble falling into line with the powers that be over what those decades really mean. I even argue with their timing.
Here’s my basic theory: an individual relates best to the people he or she is in high school with. That makes an age group that stretches from the seniors when you’re a freshman to the freshmen when you’re a senior, and (if my arithmetic is right) that makes seven years. I contend you don’t relate equally well to all of those, so more like five years would be closer to right.
Now, I see no magic to something like fashions, arts, entertainment, government, products, or whatever you name, falling neatly into those ten-year lumps. By design, the politicians have either 2, 4, or 6 year terms, not 10, so only the 2-year folks even have a shot at neat 10-year slices of their lives.
And when you get to the specific decade at issue, it’s rare that it fall neatly into the x0-x9 (or better yet the x1-x0) year grouping.
Take “The 60’s” as a for instance. The 60’s were almost done when the hippies started having their biggest influence. Until then the 60’s were more like what people think the 50’s were. And the 60’s stretched well into the 70’s as far as that social upheaval stuff went.
Now, some of you may only have two or three (maybe four, possibly even five) decades to have to evaluate. But how do those neat packages of ten-year patterns strike you?