--Bona al la encycla lorica.
Humans are the dominant (and essentially only sentient) species.
At the time of the story (Chronicles of Revelation), civilization has progressed to a mid Medieval technological stage (no gunpowder, no steam engine, no electricity). Technology is actually very backward, as the brightest minds of each generation focus their attentions on magic - this also means that magic-technology is very advanced (capable of rivaling modern technology in many situations).
The lands settled by humans amount to a landmass roughly the size of western Europe.
In the time of the Chronicles, world population stands at 400 million.
The population can basically be divided into one of the following very broad social classes: