| Timeline |
| 19th century - 20th century - 21st century |
The 20th century was defined by Earth's Gregorian calendar as the period from the years 1901 to 2000, and was the final century of the second millennium CE.
On Earth, it was a tumultuous period in history, marked by major technological advancement, but also by serious global conflict and the beginnings of significant climate change, both of which would continue well into the next century.
The latter half of the 20th century marks a period where major points of divergence for a great many parallel quantum realities occur, especially from the 1960s to 1990s.
Decades[]
Major conflicts[]
- 1914-1918: World War I takes place.
- 1939-1945: World War II takes place.
- Late 1940s: The United States of America and the Soviet Union enter into a Cold War that will last decades.
- 1991: The collapse of the Soviet Union ends the Cold War.
- 1992-1996: The Eugenics Wars take place, originally. A series of temporal incursions and the Temporal Cold War will eventually shift these events into the 21st century. (TOS: "Space Seed"; TAS: "The Infinite Vulcan"; Star Trek II: The Wrath of Khan; TOS novel: The Eugenics Wars; TNG novel: Infiltrator; ENT: "Borderland", "Cold Station 12", "The Augments"; DS9: "Doctor Bashir, I Presume?"; PIC: "Farewell"; SNW: "Strange New Worlds", "Tomorrow and Tomorrow and Tomorrow")
Cultural events[]
- circa 1946: A group of scientists and specialists leave the planet Karimea and begin exploring the galaxy. After helping numerous other planets, they become known in galactic legend as the Worthy. (TOS comic: Return of the Worthy)
- circa 1962: The Brakiri start receiving radio and television signals from Earth, and begin emulating 20th century humanity as their society develops. (Babylon 5)
- 1963: The Worthy enter suspended animation. (TOS comic: Return of the Worthy)
| Timeline | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Distant Past | Early Common Era | 20th Century | 21st Century | 22nd Century | 23rd Century | 24th Century | 25th Century | Second half of the Millennium | Far Future | |
External links[]
- 20th century article at Memory Alpha, the canon Star Trek wiki.
- 20th century article at Memory Beta, the non-canon Star Trek wiki.
- 20th century article at Star Trek Expanded Universe, the fanon and fanworks Star Trek wiki.
- 20th century article at TARDIS Data Core, the Doctor Who wiki
- 20th century article at Wikipedia, the free encyclopedia.