I was browsing through another site and ran across a term I hadn't heard anyone use before. "The Copper Age." We all know Golden Age and Silver Age comics, and most people accept a Bronze Age, but I've never heard of Copper Age so I went looking things up and found people don't tend to agree on ages.
The Start of the Golden Age seems to be set in stone. Everyone agree it's the first appearance of Superman.
The Silver Age comes down to whether you want to start it with Barry as the Flash or with the Fantastic Four, but it's only a few years apart.
The Bronze Age starts with the Death of Gwen Stacy.
Other than that, there seems to be some disagreement. Some people list a Victorian Age and a Plantinum Age before Superman first appears, but there's some few comics from that time it's hardly worth mentioning.
Some have listed an Atom Age between the Golden Age and the Silver Age, but it seems poorly defined and I haven't seen any place that lists when it starts.
After the Bronze Age, depending on who you listen too, I've seen a Copper Age, a Chrome Age, and a Dark Age all listed.
If you want to go by the Copper Age definition, it apparently started with Marvel's Secret Wars mini series and ended with Jim Lee's X-men #1. After which we go into the Modern Age.
Some people follow up the Copper Age with the Chrome Age, the age of special covers, super star artists, violent anti-heroes, and bad girls. Some people call this the Dark Age. Some just call it the '90s.
After that, we're in the Modern Age. Unless we're in the Diamond Age (which some people consider started with the Ultimate line of comics.)
There are even some people that say the Modern Age is over and we've gone into the Post-Modern Age, which started with the first appearance of Miles Morales.
You'll have to excuse me if I'm a bit rambling of unfocused here, since I'm writing this out as I see this information for the first time.
Personally, I think the Copper Age definition feels kind of useless and would say the Bronze Age continued until Jim Lee's X-men, regardless of what you want to call that time.
After the 90s died down, there seemed to be a big retro modern push that I feel deserves it's own era before we got into the age of A-hole heroes and "realistic cinematic" costumes that started with the Ultimates.
I'm curious to here how other people define things, and whether you've even heard of this other ages before.