The Earthlings have been occupying the known universe for such a long time that some worlds have forgotten their true origins. The planets which have kept a memory of the "Formers" have come together to form a Galactic Federation, whereas the "Retroes" are worlds that have returned to an archaic way of life.

The Earthlings have been occupying the known universe for such a long time that some worlds have forgotten their true origins. The planets which have kept a memory of the "Formers" have come together to form a Galactic Federation, whereas the "Retroes" are worlds that have returned to an archaic way of life.