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Most of the specific dates only appear in the film version, but a few additional dates including characters ages can be interpreted from the novel version from films dates.
- 1986 - Todd Carmack was born.
- 2026 - Archaeologists working in the Nevada desert at Papoose Lake discover the Ark portal to a ancient city on Mars. Grimm's parents were among the first scientists to travel to Olduvai on Mars.
- 2027 - The Kid is born.
- 2036 - Last time John Reaper saw his sister, before she travelled to study on Mars.
- 2046 - Research has gleaned no results. Film/Novel begins.
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