出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/07/10 02:37 UTC 版)
The Bronze Age is a period characterized by the use of copper and its alloy bronze as the chief hard materials in the manufacture of some implements and weapons. Chronologically, it stands between the Stone Age and Iron Age. The term Stone Age implies the inability to smelt any ore, the term Bronze Age implies the inability to smelt iron ore and the term Iron Age implies the ability to manufacture artifacts in any of the three types of hard material. Their arrangement in the archaeological chronology reflects the difficulty of manufacture in the history of technology.
the bronze age
the bronze age
the stone age
the golden age
the golden age
the Iron Age
the Stone Age
the Golden Age
the Paleolithic Age
the atomic age
the Middle Ages
the Paleozoic era
the neolithic age
the Mesolithic era
the glacial epoch