In order to learn disciplines such as sacred mathematics, it is common to use limericks to remember concepts or procedure.

Anyway.

Economics

The economy of Armour is based on trade. Wealth is dependent on the artisans and craftsmen of Armour making use of natural resources not in the city. The area surrounding the city is good for metals only, as far as recourses go. The people of Armour are historically excellent metalworkers. The Latines were also very strong metalworkers, and were drawn to Armour for this reason. However, the Latines did not even conceive of using metal for machinery.

Often, metalcraft is traded for raw materials, or sometimes pure metal itself. Finished crafts do get bartered as well, but mostly, tribes have no use for the things citizens of Armour use.

Between citizens, trade is done directly: good for good.