| Period | Meaning of name | Material used | Main feature |
|---|---|---|---|
| Palaeolithic | Old Stone Age | Stone | Hunting-gathering; simple stone tools |
| Mesolithic | Middle Stone Age | Stone | Microlithic (tiny stone) tools; transitional phase |
| Neolithic | New Stone Age | Stone | Agriculture and settled life; domestication; polished stone tools |
| Chalcolithic | Copper and Stone Age | Copper + stone | Early metallurgy - extraction and shaping of metal |
| Bronze Age | — | Bronze (copper + tin) | Trade, towns and early civilisations expand |
| Iron Age | — | Iron | Iron smelting; stronger tools and weapons; advanced societies |
The periods reflect changes in tools, farming, lifestyle and settlement - not the material alone. One thread runs through them: stone, copper, bronze, iron.
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Stone
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The Chalcolithic
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Copper mixed with tin
The order of the periods never changes, but the dates differ from region to region . For the Indian subcontinent: