Go right ahead.  


Here's the civs in the world at present:

Anax, the ruling empire at present.  

Hispania: To the North-West of Anax.  It's a culture that's very concerned with beauty and aesthetic.  The leaders of the country surrendered willingly to Anaxan rule, but when Anaxan soldiers started hauling away their art to take back to Anaxus Prime, sects of Hispania's limited military sprung to defend the creations that they considered to be rightfully Hispanian.  Because of Hispania's official status as a vassal state to Anax, these actions were taken as crime rather than war, and captured soldiers were punished in various ways.  Many ended up in the Coliseum.

Helmfirth: A city-state in ore-rich mountains north of Anax.  When Anaxan forces came to set up mining camps, Helmfirth sprung to defend their territory.  They lost the ensuing battle and are currently under direct military occupation.  Fleeing civilians were captured forcibly by slavers who were following the Anaxan campaigns.  Many Helmfirth slaves have come through Anaxus Prime, but that was eleven years ago and now many have died or been freed.  

Unknown: A race of dark skinned wanderers pass through Anax territory fairly often, but their homeland is kept secret from the empire.  It is somewhere far to the south, and attempts to find it by Anaxan explorers have come to nothing, as many die in the desert that apparently surrounds their civilization.  

Though dangerous, the Prime Coliseum is the most likely route for a slave to earn their own freedom, and being sold to Cymede can be seen as either a curse or a blessing.