Gaia

This planet's long history has touched worlds across the galaxy, although its inhabitants are often ignorant of such significance. It is also home to one of the manifestations of Babel, making ownership of, or at least vested interest in, this small world a lucrative proposition to those who would risk the walk between worlds.

Epochs

Eden

The kingdoms of Eden and Nod, while occupying an almost insignificant area of the planet, are home to some of the grandest schemes of the mortal world.

Earth

The Modern Epoch.  This is the human world today, yesterday, and tomorrow.  From sixty-five million years prior to approximately a quarter million after the appearance of Homo sapiens, this is what the Human Race tends to think of as being, not only the whole world, but pretty much the whole of reality.

Empire City. This East Coast sprawl is a vision of the future, rebuilt on its previous ruin by Technical Matrix, Incorporated.   Many of the planet's greatest heroes make their homes here, as geneticism practically does not exist within the city's streets.  Super powered beings are more accepted in Empire than anywhere else in the world.

The Academy is where aspiring, young supers learn to harness their gifts. Founded by the member nations of the Prometheus Project, the Academy is part school, part recruiting office. Academy-trained Avatars, with few exceptions, command the most lucrative security positions in the world's most powerful institutions.

Erth

A world torn. After the Cataclysm, the beings upon the broken lands struggle for life, liberty and, eventually, escape.

The Erth of tomorrow is the fate that the world's inhabitants have brought upon themselves.  It is possible (but only minimally so) that this doomed fate might be averted.  The multiverse is always in flux and every descision reshapes the future.