//file author: Jamie Yaptinchay
//created on 26 OCT 2002
//CSE 143 Section JK
//created by manually typing information from the following book:
//Ultimate X-Men by Peter Sanderson, A Dorling Kindersley Book, 2000
//Important Introduction Dates in Marvel's X-Men Universe
1963
First appearance of the X-Men and Magneto: X-Men #1.
1965
First appearance of the Sentinels: X-Men #14.
1966
First appearance of Mimic: X-Men #19.
1967
First appearance of Banshee: X-Men #28.
1968
X-Men #49 First cover art by Jim Steranko.
1969
X-Men #69 Sauron versus Angel issue.
1970
Final Issue of X-Men original series: X-Men #66.
1972
Appearance of the Beast: Amazing Adventures #11.
1975
First issue of the new X-Men characters and first script written by Chris Claremont (X-Men #94).
1976
The new X-Men versus the Sentinels issue: X-Men #98.
1978
The Day the X-Men Died Issue: X-Men #114.
1979
Psi-War Issue: X-Men #117
1980
Phoenix Must Die Issue: X-Men #137.
1981
Days of the Future Past storyline begins: X-Men #142.
1983
First Appearance of the new team The New Mutants: The New Mutants #1.
1986
First appearance of the new team X-Factor: X-Factor #1.
1988
First issue of Wolverine's ongoing series: Wolverine #1.
1989
Inferno X-Factor Cover February: X-Factor #37.
1991
X-Force #1 Released.
1992
The first X-Men animated series comes on the air.
1993
First Issue of Cable's ongoing series released: Cable #1.
1994
Generation X #1 released.
1995
X-Man #1 released from the Age of Apocalypse story line.
1997
The first x-Men animated series comes to an end. 
1998
The first X-Men Manga comic book released: X-Men: The Manga #1.
1999
X-Men Children of the Atom #1 released, a retelling of the X-Men's origins.
2000
X-Men the movie releasedsetting ticket slaes for a 3-day weekend in July.