MarvelCBCS
X-Men
#1 · 1963
0.5
Character
X-Men comics
X-Men first appeared in The X-Men #1, cover-dated September 1963, from Marvel Comics, created by Stan Lee and Jack Kirby. Also the first appearance of Magneto.
- First appearance
- The X-Men #1
- Cover date
- September 1963
- Publisher
- Marvel Comics
- Creators
- Stan Lee and Jack Kirby
Graded X-Men books in the vault
Search the store →MarvelCGC
X-Men
#1 · 1963
4.5
MarvelCGC
X-Men
#9 · 1965
4.0
MarvelCGC
X-Men
#94 · 1975
9.2
MarvelCGC
X-Men
#94 · 1975
9.2
MarvelCGC
X-Men
#94 · 1975
8.0
MarvelCGC
X-Men
#101 · 1976
9.8
MarvelCGC
X-Men
#129 · 1980
9.8
MarvelCGC
Ultimate X-Men
#7 · 2001
9.8
MarvelCGC
Ultimate X-Men
#9 · 2001
9.8
X-Men guides
First appearance, key issues and what drives the prices.
Key issues
X-Men Comic Books: The Key Issues and What Grade Does to Them
The first X-Men comic is The X-Men #1, cover-dated September 1963, from Marvel Comics by Stan Lee and Jack Kirby. The books collectors chase most are that issue, Giant-Size X-Men #1 (1975), X-Men #94, #101 and #129, and on all of them the CGC or CBCS grade is the largest driver of price.
Updated Oct 11, 2026
Characters
What is the first appearance of the X-Men?
The X-Men first appeared in The X-Men #1, cover-dated September 1963, created by Stan Lee and Jack Kirby. The issue introduced Professor X and the original five — Cyclops, Marvel Girl (Jean Grey), Beast, Angel and Iceman — and their first enemy, Magneto. It shares its cover date with Avengers #1, published the same month.
Updated Oct 10, 2026
Characters
What is the first appearance of Storm? Giant-Size X-Men #1 explained
Storm first appeared in Giant-Size X-Men #1, cover-dated May 1975, by Len Wein and Dave Cockrum — the issue that also introduced Nightcrawler, Colossus and Thunderbird and brought Wolverine, Banshee and Sunfire together as the new X-Men. The regular series resumed with X-Men #94 (August 1975), which began Chris Claremont's sixteen-year run as writer.
Updated Oct 10, 2026
Characters
What is the first appearance of Phoenix?
Jean Grey became Phoenix in The X-Men #101, cover-dated October 1976, by Chris Claremont and Dave Cockrum, rising from Jamaica Bay after piloting a shuttle through a solar flare. Jean herself first appeared as Marvel Girl in X-Men #1 (September 1963); #101 is the first appearance of the Phoenix identity and costume. The Dark Phoenix Saga followed in X-Men #129–137 (1980).
Updated Oct 10, 2026
Characters
What is the first appearance of Kitty Pryde?
Kitty Pryde first appeared in The X-Men #129, cover-dated January 1980, by Chris Claremont and John Byrne, as a thirteen-year-old from Deerfield, Illinois recruited by Professor X. The same issue introduced Emma Frost (the White Queen) and Sebastian Shaw of the Hellfire Club and began the Dark Phoenix Saga, which makes it one of the most important issues of the Claremont–Byrne run.
Updated Oct 11, 2026
Key issues
Giant-Size X-Men #1 vs X-Men #94: which is the key?
Both. Giant-Size X-Men #1 (May 1975) introduces the new team — first appearances of Storm, Nightcrawler, Colossus and Thunderbird — and is the more valuable book. X-Men #94 (August 1975) is the first regular issue of the new team, the first issue written by Chris Claremont, and the start of the run that made the X-Men Marvel's best-selling franchise. Collectors treat Giant-Size #1 as the first appearance key and #94 as the first-issue key.
Updated Oct 10, 2026