Innovation, Productivity Growth, and the Survival of the U.S. Copper Industry
Mining in general and copper mining in particular go back a long way, back to the Bronze Age, possibly even the Stone Age. The Romans mined copper in Spain and tin in England some two thousand years ago. The writings of Agricola in the sixteenth century show that mining was important in the Middle Ages and that Medieval Europe made significant contributions to the art of mining and metal processing. Today, the world mines more mineral commodities in greater tonnages than ever before.