| Smithsonian Institution. Board of Regents - Discoveries in science - 1861 - 460 pages
...The general chronology of the three great phases in the development of civilization in Europe, called the age of stone, the age of bronze, and the age of iron, is purely relative, like the chronology of the geological formations. It is not known when the... | |
| Smithsonian Institution. Board of Regents - Discoveries in science - 1861 - 460 pages
...The general chronology of the three great phases in the development of civilization in Europe, called the age of stone, the age of bronze, and the age of iron, is purely relative, like the chronology of the geological formations. It is not known when the... | |
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