Elliot Smith[71] claims that "the full story of the coming of copper, complete in every detail and circumstance, written in a simple and convincing fashion that he who runs may read," has been displayed in Egypt ever since the year 1894, though the full significance of the evidence was not recognised until Reisner called attention to the record of pre-dynastic graves in Upper Egypt when superintending the excavations at Naga-ed-dêr in 1908[72]. These excavations revealed the indigenous civilisation of the ancient Egyptians and, according to Elliot Smith, dispose of the idea hitherto held by most archaeologists that Egypt owed her knowledge of metals to Babylonia or some other Asiatic source, where copper, and possibly also bronze, may be traced back to the fourth millennium B.C. There was doubtless intercourse between the civilisations of Egypt and Babylonia but "Reisner has revealed the complete absence of any evidence to show or even to suggest that the language, the mode of writing, the knowledge of copper ... were imported" (p. 34). Elliot Smith justly claims (p. 6) that in no other country has a similarly complete history of the discovery and the evolution of the working of copper been revealed, but until equally exhaustive excavations have been undertaken on contemporary or earlier sites in Sumer and Elam, the question cannot be regarded as settled.
Elam.
Babylonia.
The work of J. de Morgan at Susa[73] (1907-8) shows the extreme antiquity of the Copper Age in ancient Elam, even if his estimate of 5000 B.C. is regarded as a millennium too early[74]. At the base of the mound on the natural soil, beneath 24 meters of archaeological layers, were the remains of a town and a necropolis consisting of about 1000 tombs. Those of the men contained copper axes of primitive type; those of the women, little vases of paint, together with discs of polished copper to serve as mirrors. At Fara, excavations by Koldewey in 1902, and by Andrae and Nöldeke in 1903 on the site of Shuruppak (the home of the Babylonian Noah) in the valley of the Lower Euphrates, revealed graves attributed to the prehistoric Sumerians, containing copper spear heads, axes and drinking vessels[75].
Europe.
In Europe, North Italy, Hungary and Ireland[76] may lay claim to a Copper Age, but there is very little evidence of such a stage in Britain. To this period also may be attributed the nest or cache of pure copper ingots found at Tourc'h, west of the Aven Valley, Finisterre, described by M. de Villiers du Terrage, and comprising 23 pieces, with a total weight of nearly 50 lbs.[77] These objects, which belong to "the transitional period when copper was used at first concurrently with polished stone, and then disappeared as bronze came into more general use[78]," came probably from Hungary, at that time apparently the chief source of this metal for most parts of Europe. Of over 200 copper objects described by Mathaeus Much[79] nearly all were of Hungarian or South German provenance, five only being accredited to Britain and eight to France.
The study of this subject has been greatly advanced by J. Hampel, who holds on solid grounds that in some regions, especially Hungary, copper played a dominant part for many centuries, and is undoubtedly the characteristic metal of a distinct culture. His conclusions are based on the study of about 500 copper objects found in Hungary and preserved in the Buda Pesth collections. Reviewing all the facts attesting a Copper Age in Central Europe, Egypt, Italy, Cyprus, Troy, Scandinavia, North Asia, and other lands, he concludes that a Copper Age may have sprung up independently wherever the ore was found, as in the Ural and Altai Mountains, Italy, Spain, Britain, Cyprus, Sinai; such culture being generally indigenous, and giving evidence of more or less characteristic local features[80]. In fact we know for certain that such an independent Copper Age was developed not only in the region of the Great Lakes of North America, but also amongst the Bantu peoples of Katanga and other parts of Central Africa. Copper is not an alloy like bronze, but a soft, easily-worked metal occurring in large quantities and in a tolerably pure state near the surface in many parts of the world. The wonder is, not that it should have been found and worked at a somewhat remote epoch in several different centres, but that its use should have been so soon superseded in so many places by the bronze alloys.
The Bronze Age.
From copper to bronze, however, the passage was slow and progressive, the proper proportion of tin, which was probably preceded in some places by an alloy of antimony, having been apparently arrived at by repeated experiments often carried out with no little skill by those prehistoric metallurgists.
As suggested by Bibra in 1869, the ores of different metals would appear to have been at first smelted together empirically, and the process continued until satisfactory results were obtained. Hence the extraordinary number of metals, of which percentages are found in some of the earlier specimens, such as those of the Elbing Museum, which on analysis yielded tin, lead, silver, iron, antimony, arsenic, sulphur, nickel, cobalt, and zinc in varying quantities[81].