500,000 years ago

Events

500,000 years ago

• Babylon 5: 500,000 years ago. The Vindrizi are created to record all the knowledge in the galaxy, so that it may be preserved through a possible interstellar dark age in the future. ("Exogenesis")

• Star Trek, Star Trek (Expanded Universe): 500,000 years ago. The Bajoran civilization "flourishes" at this time. ("Ensign Ro" (Star Trek: The Next Generation), Star Trek Chronology (Revised))

• Star Trek, Star Trek (Expanded Universe): 500,000 years ago. The star Exo begins to fade, causing a cataclysmic drop in the temperature of Exo III and forcing the natives underground. ("What Are Little Girls Made Of?" (Star Trek), Star Trek Chronology (Revised))

• Star Trek, Star Trek (Expanded Universe): 500,000 years ago. Sargon's world is devastated when its atmosphere is ripped away in a disaster; Sargon and others of his race survive within special "survival canisters" stored beneath the planet's surface. ("Return to Tomorrow" (Star Trek), Star Trek Chronology (Revised))

300,000 years ago

• DC (Post-Crisis), DC (Post-Zero Hour): 245,000 years ago. Doomsday is created on Krypton, and wreaks havoc across the universe until finally imprisoned by the people of Calaton. (Superman/Doomsday: Hunter/Prey, Doomsday Annual #1)

200,000 years ago

• Real World: 200,000 years ago. The earliest forms of Homo sapiens appear around this time.

• DC (Post-Crisis), DC (Post-Zero Hour): 200,000 years ago. At the close of Krypton's Fourth Age, cloning is perfected. Later, by halfway through the Fifth Age of Krypton, the majority of Kryptonians have three clones of themselves, used for replacement parts, held in stasis within cloning banks deep underground. (Superman: The Ultimate Guide to the Man of Steel)

• Cthulhu Mythos: 200,000 years ago. The height of Mu. (Source unknown)

• Cthulhu Mythos: 161,844 BC (nearly 164,000 years ago). Mu is destroyed in a cataclysm. (Source unknown)

• Doctor Who, Doctor Who (Expanded Universe): c. 100,000 BC (about 102,000 years ago). The primitive humanity of this era worships Orb. The First Doctor, Susan, Barbara Wright and Ian Chesterton visit this time. ("An Unearthly Child" ("100,000 BC"))

• DC (Post-Crisis), DC (Post-Zero Hour): 101,000 years ago. Kandor, capital city of Krypton, is decimated by a nuclear weapon planted by the anti-cloning terrorist organization known as Black Zero. A thousand years of bloody civil war follow. (Superman: The Ultimate Guide to the Man of Steel)

• Star Wars, Star Wars (Expanded Universe): c. 98,186 BC (c. 100,000 BBY) (almost 100,200 years ago). The main city of Coruscant now covers the entire planet. (Unsourced information from Dates in Star Wars)

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