Ancient Metallurgy

The manipulation of metal is one of the most important technological achievements of any civilization, whether ancient or modern. It's impact on both military and civilian life was so immense that entire periods of ancient history are named after the sorts of metals they were able to forge. The Bronze Age in Europe, for example, started in 2300 BCE and ended in 600 BCE. And the same way that modern advances often drive prices down for older technology, the Iron Age caused Bronze to become a more common, affordable commodity for soldier and farmer alike.

The ancient Europeans had many different methods for working metals long before the Romans added their own spice to the process. The earliest was probably hammering, where you just take two different malleable alloys and smash them together with a hammer until they've blended. Not the most efficient means, to be sure, but it was an effective, if time-consuming alternative to costlier methods involving furnaces and seals.

Provided you had a furnace, you could employ it to purify metals and weed out the slag, normally in preparation for working it. Smelting was commonly employed, a process where you seal the melting metal in a small container and separate the metal from the metal oxide. Before you smelted, however, you'd probably want to roast, which means almost literally barbecuing the metal over an open pit to eliminate the sulfur oxide before purifying the metal itself. After the metal has been melted and liberated of impurities, it would be cast into a mold where it would harden and become a plow, fork, helmet, or spearhead.

While the Romans certainly didn't create these and other primitive techniques, they built an empire upon the use of metals. Many of their early conquered lands were rich in metals of all sorts, and it wasn't long before captive slaves were sold to wealthy speculators who forced them to work the mines in Spain, Sicily, Britannia, and many other provinces. The mines were often dangerous, but it is interesting to note that the Romans appeared to have used a sort of hydraulic mining by utilizing their aqueducts and pushing water under some of the more metal-rich mountains especially in Spain. Just like with modern strip-mining, the result is almost offensive to behold.

Security of these mines was of top priority to the Roman government, whether Republican or Imperial. Many wars were fought over the resources they contained because the Romans knew that without a steady supply of metals, both precious and practical, the entire Empire would grind to a halt and even the city itself would be in danger. In fact, almost half of the time, they were fighting wars to ensure that they would be able to fight wars.

Pax vobiscum