( Originally Published Early 1900's )
All these early beginnings must have taken place far back in time, and in regions of the world that have still to be effectively explored by the archaeologists. They were probably going on in Asia or Africa, in what is now the bed of the Mediterranean, or in the region of the Indian Ocean, while the Reindeer man was developing his art in. Europe. The Neolithic men who drifted over Europe and Western Asia 12,000 or 10,000 years ago were long past these beginnings; they were already close, a few thousand years, to the dawn of written tradition and the remembered history of mankind. Without any very great shock or break, bronze came at last into human life, giving a great advantage in warfare to those tribes who first obtained it. Written history had already begun before weapons of iron ,came into Europe to supersede bronze.
Already in those days a sort of primitive trade had sprung up. Bronze and bronze weapons, and such rare and hard stones as jade, gold because of its plastic and ornamental possibilities, amber because of its translucent beauty, and skins and flax-net and cloth, were being swapped and stolen and passed from hand to hand over great stretches of country, Salt also was probably being traded. On a meat dietary men can live without salt, but grain consuming people need it just as herbiverous animals need it. Hopf says that bitter tribal wars have been carried on by the desert tribes of the Soudan in recent years for the possession of the salt deposits between Fezzan and Murzuk. To begin with, barter, black-mail, tribute, and robbery by violence passed into each other by insensible degrees. Men got what they wanted by such means as they could.