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Timeline for the The 100 book series.

Information regarding the dates is vague but a relatively accurate timeline of events is possible.

Before the Series


The Cataclysm happened approximately 300 years before the start of the novels. As nuclear and biological war threatened to destroy Earth, underground bunkers and outer space were the only options for survival.

Several hundred people managed to escape to space and form the Colony space station. Other survivors hid in the Mount Weather Emergency Operations Center, an underground bunker, in Virginia, US. 250 years later, the Mount Weather survivors, known as Earthborns, returned to the ground and created a village.


In the Series

The 100

Day 21



See Also

The 100 Book Series

Novels (The 100Day 21HomecomingRebellion) • by Kass Morgan

Characters (ClarkeWellsBellamyGlassOctaviaLuke) • TimelineLocations (The Colony, Earth)

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