In the mid 1950s, editorial director Irwin Donenfeld and publisher Liebowitz directed editor Julius Schwartz (whose roots lay in the science-fiction book market) to produce a one-shot Flash story in the try-out title Showcase. Instead of reviving the old character, Julius Schwartz had writer Robert Kanigher and John Broome, penciler Carmine Infantino and inker Joe Kubert create an entirely new super speedster, updating and modernizing the Flash's civilian identity, costume, and origin with a science-fiction bent.

The Flash's re-imagining in Showcase #4 (in October 1956) proved popular enough that it soon led to a similar revamping of the Green Lantern character, the introduction of the modern all-star team Justice League of America, and many more super-heroes, heralding what historians and fans call the Silver Age of comic books.

Detective Comics #225 Joe Samachson, Jack Miller, Joe Certa November 1955, 36 pages, cover price 10¢ File size : 24,2 Mo

1: J'onn J'onzz / Martian Manhunter 1&D: Dr. Erdel

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Showcase #004 Robert Kanigher, Carmine Infantino, Joe Kubert September October 1956, 36 pages, cover price 10¢ File size : 12,6 Mo

1: Barry Allen / The Flash C: Jay Garrick 1: Iris West 1: The Turtle Man 1: Mazdan

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Adventure Comics #247 Otto Binder, Al Plastino April 1958, 36 pages, cover price 10¢ File size : 35,4 Mo

Superboy 1: Legion of Super-Heroes 1: Cosmic Boy 1: Lightning Lad 1: Saturn Girl C: Jonathan Kent

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Action Comics #252 Otto Binder, Al Plastino May 1959, 36 pages, cover price 10¢ File size : 28,6 Mo

Kal-El / Superman 1: Kara Zor-El / Supergirl 1: Zor-El Superboy

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Showcase #022 John Broome, Gil Kane, Joe Giella September October 1959, 36 pages, cover price 10¢ File size : 09,2 Mo

1: Hal Jordan / Green Lantern 1: Abin Sur 1: Willard Ferris 1: Carol Ferris 1: Dr. Parris

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Brave and the Bold #028 Gardner Fox, Mike Sekowsky Bernard Sachs, Joe Giella, Murphy Anderson February March 1960, 36 pages, cover price 10¢ File size : 13,6 Mo

1: Justice League of America Aquaman, The Flash Green Lantern Martian Manhunter Earth-1 Wonder Woman C: Earth-1 Batman C: Earth-1 Superman 1: Starro the Conqueror 1: Snapper Carr

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