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01 · October 1956
Showcase #4
First appearance of Barry Allen as the Silver Age Flash. The book credited with starting the Silver Age of superhero comics outright. Created by Robert Kanigher and Carmine Infantino.
Ten Flash storylines that together map the character across every DC era. Showcase #4 reopened the superhero genre in 1956 and started the Silver Age; Flashpoint rewrote the entire DC Universe in 2011. Between them, the Flash mythology built the Multiverse, the Rogues, the Speed Force, and every legacy-hero succession pattern DC has used since. Entries are ordered chronologically and mix single issues with story arcs. If you only read two, read Showcase #4 and Flashpoint — the bookends of the Silver Age and Modern Age Flash.
10 picks
Key
01 · October 1956
First appearance of Barry Allen as the Silver Age Flash. The book credited with starting the Silver Age of superhero comics outright. Created by Robert Kanigher and Carmine Infantino.
Key
02 · January 1959
The Flash #110
First appearance of Wally West as Kid Flash. The first superhero sidekick in the Silver Age. Wally inherits the Flash mantle in 1986 and holds it for roughly two decades.
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03 · September 1961
The Flash #123
First Silver Age appearance of Jay Garrick (the Golden Age Flash), first reference to Earth-Two, first crossover between DC's current and Golden Age continuities. The issue that invented the Multiverse.
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04 · September 1963
The Flash #139
First appearance of Eobard Thawne, the Reverse-Flash / Professor Zoom. The character who would eventually kill Iris Allen and who defined the Flash's reverse-mirror antagonist archetype.
05 · 1965
The Flash #155
The Rogues team up against Flash for the first time. Captain Cold, Captain Boomerang, Mirror Master, Heat Wave, Pied Piper, and the Top. The Rogues as a coordinated team originates here.
06 · August 1967
Superman #199
The first race between Superman and Flash. Inconclusive by editorial design; the race repeats across Flash #175 and later. A template the comics, animation, and film adaptations keep returning to.
07 · July 1979
The Flash #275
Iris Allen is murdered by Professor Zoom. Barry's grief and subsequent trial-of-Flash arc define the late-Bronze Age Flash story. Iris later returns; the death itself is the pivotal character moment.
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08 · November 1985
Marv Wolfman and George Perez. Barry Allen dies saving the multiverse. Stays dead for roughly 23 years. Wally West takes over the Flash title in 1986. One of the most consequential deaths in superhero comics.
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09 · 2009
The Flash: Rebirth #1-6
Geoff Johns and Ethan Van Sciver. Brings Barry Allen back permanently, integrates Wally West, Jay Garrick, and Bart Allen into a single Flash family, and formalizes the Speed Force mechanics. Sets up Flashpoint.
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10 · 2011
Flashpoint #1-5 + tie-ins
Geoff Johns and Andy Kubert. Barry Allen breaks the timeline; the resulting alternate present leads into the New 52 line-wide reboot. One of DC's two modern line-wide reset events (the other being Crisis).