The Roman Empire was among the most powerful economic, cultural, political and military forces in the world of its time, covering 5 million square kilometers. The Iron Age is characterised by the use of tools made of iron. During the Bronze Age, man learned to make tools of metal by smelting copper and bronze. The Stone Age was a period of several million years during which stone was widely used to make tools.
The Roman Empire
Iron age
Bronze Age
Stone Age
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