FANDOM


1939:

1945:

1983:

1987:

  • Introduction of nuclear-powered ion and plasma spaceship engines.

1990:

1998:

1999:


The 20th Century
Years
1939 - 1945 - 1983 - 1987 - 1990 - 1998 - 1999 | 2003
Events
World War II - World War III
Timeline
Twentieth Century - Twenty-First Century - Twenty-Second Century - Twenty-Third Century - Twenty-Fourth Century

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