A Superhero Chronology

INTRODUCTION 

There's a tendency to divide the different eras of comic book superheroes into "Golden," "Silver", and "Modern," with occasional, tentative attempts to parcel off the Bronze Age, as well.

Let's just say that this lacks nuance. The Superhero Genre has gone through a lot of trends and phases and distinctive cultures over the years, and lumping almost half of its history into some concept of "The Modern Age" is just phoning it in. 

Some notes: 

• This is not quite the same as the ages of COMICS, though there's similar nomenclature, largely because comics history tends to focus on the superhero genre even when it tries not to. This is about SUPERHEROES, in more than just a single medium; the "Ages" only indirectly impact other genres. 
• All dates are approximate. 
• There's plenty of overlap between Silver/Bronze, Bronze/Iron, and Iron/Aluminum, but when I started looking a keystone events, I was astonished by how neatly everything fell into 15-year chunks! 

THE CHRONOLOGY 

Prelude (1830s-1938): The dawn of mass-produced popular culture: penny dreadfuls, dime novels, pulp magazines, newspaper comic strips. Folk heroes and detectives start sharing the pages with costumed adventurers, some with peak-human or superhuman abilities. Professor Challenger, Sherlock Holmes, The Nyctalope, The Shadow, Doc Savage. 

Golden Age (1938-1953): Begins with Superman, of course; ends with Post-War Superhero Implosion and Frederic Wertham's anti-comics crusade. The JSA stopped appearing in All-Star Comics in 1951. Fawcett stopped publishing Captain Marvel in 1953. 

Interregnum (1950ish-1960ish): A lot of historians make much of the gap between the Golden and Silver Ages, but, in retrospect, it's surprisingly brief. Superheroes never really go away, but they are de-emphasized in favor of other genres in comics, including horror, romance, and science fiction. Even at DC, other than Superman, Batman, and Wonder Woman, superheroes are relegated to back-up stories in anthology titles. Still, The Adventures of Superman with George Reeves remained popular throughout this period. 

Silver Age (1954-1970): The Reign of the Comics Code Authority (est. 1954). Really starts to roll with the demise of EC Comics and the reboot of The Flash; peaks with the "camp" craze popularized by the 1966 Batman TV series; ends when Kirby Moves to DC and Marvel publishes the Spider-Man Drug Stories without the Code Stamp. Early on, formerly-anonymous creators start getting openly credited on the title pages of their stories; this starts at Marvel, but DC eventually follows suit. 

Bronze Age (1971-1985): Begins with O'Neil and Adams revamping Batman and Green Lantern; Ends with the Crisis on Infinite Earths. Both DC and Marvel start paying closer attention to continuity and "relevance", and the most successful titles are the ones that most fully embrace an ongoing serial storyline (Legion of Super-Heroes, X-Men, The New Teen Titans). The specialty comic book shop starts becoming more common at the beginning of the era, and the closing years of the era herald a growing Creator's Rights movement, the birth of the Direct Market -- and the dawn of the independent publishers. 

Iron Age (1986-2000): Begins with Deconstruction: Elementals, The Dark Knight Returns, Watchmen, and the Wild Cards "mosaic novel" series. Ends with Reconstruction: Morrison's JLA, among others. Dominated by a determined effort to Take Superhero Comics Seriously. The Big Two kill off or "reinvent" goofy, campy Silver Age characters. DC tries very hard to bring coherency and consistency to its new, Post-Crisis timeline. Several independent publishers try cold-starting superhero "universes" of their own; most of them fail, but a lucky few manage to sell their characters to the Big Two (Ultraverse, Wildstorm). 

Aluminum Age (2000-2015): When Everything is Recycled. Marvel starts the Ultimate Universe. DC resurrects Silver Age characters who got killed off in the Bronze and Iron Age. The Comics Code finally dies in 2011. DC does a succession of "sequels" to Crisis on Infinite Earths: Identity Crisis (2004), Infinite Crisis (2005-2006), and the deceptively-named Final Crisis (2008), culminating in another Hard Reboot with the New 52 in 2011. Marvel does its own version of Crisis with the Multiverse Incursion story arc in New Avengers from 2013-2015. "Decompression" and "writing for the trade" become common as trade-paperback collections become more economically important than the traditional monthly comic magazines ("floppies"). 

Digital Age (2015-Current): Superhero not only become mainstream, but actually dominate movies and TV for several years -- this starts in the Aluminum Age, with the MCU in 2008, but is solidly codified by the debut of Arrow in 2015 and an explosion of weekly prime-time superhero shows that lasts almost a decade.

Comments are welcome, but be civil! This is intended to provoke conversations, not fights.