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| Science & Technology |
| Artificial islands older than Stonehenge stump scientists |
| 2019-06-25 |
| [NationalGeographic] A study of crannogs in Scotland's Outer Hebrides reveals some were built more than 3,000 years earlier than previously thought. But what purpose did they serve? |
| Posted by:Skidmark |
| #4 |
| Posted by: Injun Bucket8891 2019-06-25 18:08 |
| #3 |
| Posted by: Skidmark 2019-06-25 15:34 |
| #2 |
| Posted by: Warthog 2019-06-25 09:41 |
| #1 |
| Posted by: AlanC 2019-06-25 09:23 |