Question

How do we know the stone that we found is 1000 year old?

Answer 1

by radio carbon dating method we can found the age of stone ....

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Answer 2

There are numerous ways that this is determined. Not all are what you would consider scientific dating methods. Scientific dating can be expensive; especially when there are large amounts of artefacts. The dating is done from the least invasive and cheapest to the most expensive.

The first step is knowing where the item came from. A large part of an archaeologists job is recording the different layers of soil and their relation to each other. These layers are termed deposits more commonly. These will be in features, natural features are rarely excavated although it does happen.