Stonehenge was constructed in five phases over a period of around 1500 years, from 3100 BC to 1600 BC. The earliest structures were simple earthworks or timber circles, followed by the famous sarsen stone circle with lintels in the period 2500-2400 BC. Further construction phases saw the addition of the trilithon entrance and stone settings within the inner circle from 2300 BC. The final phase from 2200-2000 BC involved the re-organization of the stones.

1. STONEHENGE

5. Phase 1 ca 3100-2900 BC.

6. Phase 2 2500-2400 BC.

7. Phase 3 2300 BC.

8. Phase 4 2200-2000 BC.

9. Phase 5 1800-1600 BC.

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