Timeline of Classic OtherSpace

''This article is about the in character history of OtherSpace. For information about the out of character, real life history of OtherSpace, visit Timeline of Classic OtherSpace (real life).''

The timeline of OtherSpace begins in 10,000,000 BCE, and the clock keeps running until it's a thousand years in the future. Years are measured in the Terran standard: three hundred and sixty-five days.

Pre-Arc timeline
These are the events that occurred prior to the first major story arc in 1998.

Arcs I-XVII timeline
This section summarizes the first seventeen major story arcs. It is important to note that in 2651 CE, the colony ship Sanctuary entered an alternate realm called Hiverspace in which time moved at a much faster pace -- an hour in Hiverspace equated to a year in Normalspace. For clarity's sake, Sanctuary's activities in Hiverspace are highlighted in red, while the events that occurred in Normalspace during its absence are highlighted in green.

New Journeys timeline
In 2004, after a short break from major arcs, Otherspace resumed its ongoing story. These adventures are known as Otherspace: New Journeys.