Prehistory

Prehistory is the overall term for a time period that existed before written human history. This spans a mind-boggling range of time, about 4.6 billion years to roughly 10,000 years ago.

Locations
There are several eras, periods, epochs and otherwise in the timescale of prehistory for you to access. There are several specific visitable locations within each period for you to visit, which are known as Sites.
 * Precambrian
 * Edicarian
 * Cambrian
 * Ordovician
 * Silurian
 * Devonian
 * Carboniferous
 * Permian
 * Triassic
 * Jurassic
 * Cretaceous
 * Paleogene
 * Paleocene
 * Eocene
 * Oligocene
 * Neogene
 * Miocene
 * Pliocene
 * Pleistocene
 * Anthropogene

Travel to the future has been so far forbidden, and not covered in roleplaying.