Bronze axes had been marketed from Brython right across Europe and Greece for two millennia in prehistoric times; wealth that accumulated in north Wales came to the notice of Julius Caesar who attempted an invasion of Brython but was repulsed in 56 BC.
During the Christian Era the wealth was plundered by the Roman Legions to finance the western Roman Empire; when the cupboard was bare the Legions retreated from the west to form the Eastern Roman Empire.
Where is that wealth today?