included tin sources. The Tartessians are known to have exploited the British tin trade in the 7th and 6th centuries BC.

Himilco's exploration took place beyond what were then considered the limits of Europe, although Greek sailors such as the Phocaeans and Massalians had already reached at least Ophiussa (modern Portugal), and possibly north-western Brittany. Whether Himilco was aware of these earlier