Archaeologists discover oldest olive groves in Croatia dating 3,500 years: Well-preserved organic material trapped in thick marine growth layers has even data they can rarely obtain on land, enriching the knowledge about Pre-Liburnian communities living there about 3 millennia ago.

See the source article by following the link below:
Archaeologists discover oldest olive groves in Croatia dating 3,500 years: Well-preserved organic material trapped in thick marine growth layers has even data they can rarely obtain on land, enriching the knowledge about Pre-Liburnian communities living there about 3 millennia ago.