When it comes to 1st appearances, no other era comes close to the Silver Age of comics. Marvel comics took  risk on Stan Lee's Fantastic Four and it opened the door for a surge of new comic book superheroes unlike any comic age since. Just look at all of these amazing 1st appearances...

X MEN 12 1ST APPEARANCE OF THE JUGGERNAUT BETTER GRADE
X MEN 12 1ST APPEARANCE OF THE JUGGERNAUT BETTER GRADE
$249.99
Time Remaining: 1h 26m
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X MEN 28 1ST APPEARANCE OF THE BANSHEE BETTER GRADE
X MEN 28 1ST APPEARANCE OF THE BANSHEE BETTER GRADE
$74.99
Time Remaining: 1h 27m
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X MEN 44 1ST APPEARANCE RED RAVEN MUST HAVE
X MEN 44 1ST APPEARANCE RED RAVEN MUST HAVE
$24.99
Time Remaining: 1h 27m
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The Avengers 10 Nov 1964 Marvel 1st Appearance Immortus Silver Age
The Avengers 10 Nov 1964 Marvel 1st Appearance Immortus Silver Age
$11.61 (3 Bids)
Time Remaining: 2h 4m
Justice League of America 16 CBCS 35 1st Appearance of The Maestro1962 DC
Justice League of America 16 CBCS 35 1st Appearance of The Maestro1962 DC
$40.00
Time Remaining: 2h 23m
Buy It Now for only: $40.00
FANTASTIC FOUR 1968 80 CGC 50 1ST APPEARANCE OF TOMAZOOMA STAN LEE KIRBY
FANTASTIC FOUR 1968 80 CGC 50 1ST APPEARANCE OF TOMAZOOMA STAN LEE KIRBY
$75.00
Time Remaining: 2h 37m
Buy It Now for only: $75.00
Justice League of America 29 Aug 1964 DC VG+ 45 1ST SA STARMAN APPEARANCE
Justice League of America 29 Aug 1964 DC VG+ 45 1ST SA STARMAN APPEARANCE
$59.99
Time Remaining: 3h 1m
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CAPTAIN ATOM 83 1st Appearance BLUE BEETLE Charlton Comic Steve Ditko 1966 FN VF
CAPTAIN ATOM 83 1st Appearance BLUE BEETLE Charlton Comic Steve Ditko 1966 FN VF
$349.95
Time Remaining: 3h 6m
Buy It Now for only: $349.95
Showcase  73 CBCS 85 VF+ 1st Appearance the Creeper 1968 Steve Ditko LIKE CGC
Showcase 73 CBCS 85 VF+ 1st Appearance the Creeper 1968 Steve Ditko LIKE CGC
$179.99
Time Remaining: 3h 31m
Buy It Now for only: $179.99
Avengers  71 PGX 90 VF NM 1st Appearance of the Invaders NOT CGC Black Knight
Avengers 71 PGX 90 VF NM 1st Appearance of the Invaders NOT CGC Black Knight
$329.99
Time Remaining: 3h 31m
Buy It Now for only: $329.99
INCREDIBLE HULK 155 VF 1ST APPEARANCE SHAPER
INCREDIBLE HULK 155 VF 1ST APPEARANCE SHAPER
$24.99
Time Remaining: 3h 49m
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INCREDIBLE HULK 155 VF 1ST APPEARANCE SHAPER
INCREDIBLE HULK 155 VF 1ST APPEARANCE SHAPER
$19.99
Time Remaining: 3h 50m
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X MEN 221 Marvel comic book 1ST appearance MR SINISTER 1987
X MEN 221 Marvel comic book 1ST appearance MR SINISTER 1987
$54.00
Time Remaining: 3h 57m
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Nick Fury Agent of Shield 15 cgc 85 1st appearance and death of Bullseye
Nick Fury Agent of Shield 15 cgc 85 1st appearance and death of Bullseye
$97.62
Time Remaining: 4h 4m
Buy It Now for only: $97.62
Thor 132 CGC 96 NM+ near mint 1st appearance of EGO Marvel comics 1250667015
Thor 132 CGC 96 NM+ near mint 1st appearance of EGO Marvel comics 1250667015
$599.95
Time Remaining: 4h 15m
Buy It Now for only: $599.95
Marvel Amazing Spider Man 5 1963 Key 1st Doctor Doom Appearance CGC 70 BP619
Marvel Amazing Spider Man 5 1963 Key 1st Doctor Doom Appearance CGC 70 BP619
$1,649.95
Time Remaining: 4h 20m
Buy It Now for only: $1,649.95
Action Comics  252 CGC 18 GD 1st Appearance and Origin of Supergirl MEGA KEY
Action Comics 252 CGC 18 GD 1st Appearance and Origin of Supergirl MEGA KEY
$1,199.99
Time Remaining: 4h 31m
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Showcase  76 CGC 94 NM White Pages 1st Appearance of Bat Lash 1968
Showcase 76 CGC 94 NM White Pages 1st Appearance of Bat Lash 1968
$314.99
Time Remaining: 4h 31m
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Doom Patrol  99 CGC 70 FN VF 1st Appearance of Beast Boy Changeling HTF
Doom Patrol 99 CGC 70 FN VF 1st Appearance of Beast Boy Changeling HTF
$699.99
Time Remaining: 4h 31m
Buy It Now for only: $699.99
Tales of Suspense  57 CGC 35 VG Origin and 1st Appearance of Hawkeye KEY
Tales of Suspense 57 CGC 35 VG Origin and 1st Appearance of Hawkeye KEY
$379.99
Time Remaining: 4h 31m
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Avengers  57 CGC 50 VG FN 1st Appearance of the Vision SILVER AGE KEY
Avengers 57 CGC 50 VG FN 1st Appearance of the Vision SILVER AGE KEY
$329.99
Time Remaining: 4h 31m
Buy It Now for only: $329.99
Amazing Spider Man 36 CGC 75 VF 1st Appearance of the Looter 1966 Steve Ditko
Amazing Spider Man 36 CGC 75 VF 1st Appearance of the Looter 1966 Steve Ditko
$159.99
Time Remaining: 4h 31m
Buy It Now for only: $159.99
Avengers  55 CGC 70 FN VF 1st Full Appearance of ULTRON 1968
Avengers 55 CGC 70 FN VF 1st Full Appearance of ULTRON 1968
$249.99
Time Remaining: 4h 31m
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Showcase  34  36 1st  3rd Silver Age appearance of The Atom Lot of 2
Showcase 34 36 1st 3rd Silver Age appearance of The Atom Lot of 2
$125.00
Time Remaining: 4h 40m
Buy It Now for only: $125.00
Marvel THE AVENGERS 28 1st Appearance COLLECTOR VG 1966
Marvel THE AVENGERS 28 1st Appearance COLLECTOR VG 1966
$79.99
Time Remaining: 4h 42m
Buy It Now for only: $79.99
DAREDEVIL 9 CBCS 90 WHITE PAGES 1ST APPEARANCE OF THE ORGANIZER
DAREDEVIL 9 CBCS 90 WHITE PAGES 1ST APPEARANCE OF THE ORGANIZER
$240.00
Time Remaining: 4h 45m
Buy It Now for only: $240.00
DC 1968 Green Lantern 59 CGC 85 1st Appearance Guy Gardner OW White Pages
DC 1968 Green Lantern 59 CGC 85 1st Appearance Guy Gardner OW White Pages
$475.00
Time Remaining: 5h 8m
Buy It Now for only: $475.00
ARCHIES MAD HOUSE ANNUAL 3 REPRINTS 1ST SABRINA APPEARANCE 22 1965 66 GOOD
ARCHIES MAD HOUSE ANNUAL 3 REPRINTS 1ST SABRINA APPEARANCE 22 1965 66 GOOD
$38.00
Time Remaining: 5h 12m
Buy It Now for only: $38.00
The Avengers 21 Oct 1965 Marvel VF 80 Origin  1st Appearance of Power Man
The Avengers 21 Oct 1965 Marvel VF 80 Origin 1st Appearance of Power Man
$150.00
Time Remaining: 5h 17m
Buy It Now for only: $150.00
The Avengers 28 May 1966 Marvel FN VF 70  1st Appearance of the Collector
The Avengers 28 May 1966 Marvel FN VF 70 1st Appearance of the Collector
$200.00
Time Remaining: 5h 22m
Buy It Now for only: $200.00
1968 THE MIGHTY THOR  154 VERY FINE+ CONDITION 1ST APPEARANCE OF MANGOG
1968 THE MIGHTY THOR 154 VERY FINE+ CONDITION 1ST APPEARANCE OF MANGOG
$75.00
Time Remaining: 5h 34m
Buy It Now for only: $75.00
THE AVENGERS 1 Origin  1st Appearance of Team missing cover Marvel 1963
THE AVENGERS 1 Origin 1st Appearance of Team missing cover Marvel 1963
$64.00 (18 Bids)
Time Remaining: 6h 19m
FIGHTIN 5 40 1st Appearance PEACEMAKER 1 Charlton Comics Lot 1966 Rare HTF VG
FIGHTIN 5 40 1st Appearance PEACEMAKER 1 Charlton Comics Lot 1966 Rare HTF VG
$89.95
Time Remaining: 6h 27m
Buy It Now for only: $89.95
Fantastic Four  53 CGC 40 VG 2nd Appearance of Black Panther 1966 1st Klaw
Fantastic Four 53 CGC 40 VG 2nd Appearance of Black Panther 1966 1st Klaw
$99.99
Time Remaining: 7h 3m
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Iron Man 17 Marvel 1969 1st Appearance of Midas and Madame Masque Factory Error
Iron Man 17 Marvel 1969 1st Appearance of Midas and Madame Masque Factory Error
$19.99
Time Remaining: 7h 7m
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Batman 121 CGC 55 Origin and 1st Appearance of Mister Zero Mister Freeze
Batman 121 CGC 55 Origin and 1st Appearance of Mister Zero Mister Freeze
$3,000.00
Time Remaining: 7h 30m
Buy It Now for only: $3,000.00
Amazing Spider Man 38 CGC 75 Origin and 1st Appearance of Molten Man SOLD
Amazing Spider Man 38 CGC 75 Origin and 1st Appearance of Molten Man SOLD
$600.00
Time Remaining: 7h 30m
Buy It Now for only: $600.00
THOR 165 Grade 50 1st Full Appearance of Adam Warlock
THOR 165 Grade 50 1st Full Appearance of Adam Warlock
$150.00
Time Remaining: 7h 45m
Buy It Now for only: $150.00
THE AMAZING SPIDER MAN 70 1st Appearance Vanessa Fisk VERY FINE NEAR MINT
THE AMAZING SPIDER MAN 70 1st Appearance Vanessa Fisk VERY FINE NEAR MINT
$75.00
Time Remaining: 8h 17m
GREEN LANTERN 40 Oct 1965 1st Appearance INFINITE EARTHS VG Or Better
GREEN LANTERN 40 Oct 1965 1st Appearance INFINITE EARTHS VG Or Better
$79.99
Time Remaining: 8h 59m
Buy It Now for only: $79.99