The Mars Era was the time when humans came to be, created their first societies and civilizations and started making war with each other. It is thought that it lasted from the time of the appearance of Man on Mars, until the exodus of humans to Earth, on the 48. day of 1. уг. The Mars Era lasted around ten million oldearth years.
During the Old Earth Era the human knowledge of this part of history was divided. While the Internians were able to preserve most documented evidence from this part of our history, the Oldearthers knew almost nothing of it, and deemed any knowledge of it they came across as fantasies. Only at the time of Symbiosis was the fact that the Human species originated on Mars, the fourth planet of the Solar system finally accepted.