By 400 CE the Samothrace mysteries of a warrior Goddess which in fact had started based by Amazon Sarmatian female were changed of the Eleusinian secrets of a Goddess of virility and love
The Romans invaded Gaul in the first millennium CE and also the Roman Emperors Tiberius and Claudius actively repressed the Druid community. Of the 2nd millennium they have vanished from Gaul. Allegedly the Druids fled to Britain alongside spots of retreat.
