¹⁴C dating has produced some anomalies such as early dates forthe megalithic tombs in western Europe of 2500 B.C. and sites related to the Vinca culture dated as 4000 B.C. Egyptian objects dated between 3000 and 2000 B. C., yielded dates that placed them centuries later. The divergence between ¹⁴C and tree-ring dates is not serious after 1500 B.C. but becomes larger by 2500 B. C. (Ö5 700 yr.). Revision of ¹⁴C dates for prehistoric Europe has an effect on the diffusionist chronology. Tree-ring calibration transforms the picture of what happened in prehistoric Europe and how Europe developed. Initial impact of ¹⁴C dating will lead archaeologists to revise their dates for prehistoric Europe. -- AATA