The political issues that caused the most division in Washington, DC, as the United States moved westward in the 19th century, was whether each new state admitted to the Union would be "slave" or "free". The issue eventually resulted in the Civil War.
market economy? I think so at least I remember doing something like this last year
It's located in Africa. Northeastern Africa.
The Twelve Tables were an ancient set of laws created by the Romans, and were the first written set of laws enforced by the Roman Empire. They inspired future law makers to be strict and unforgiving.