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Trade.
As an easier means of exchange than trade goods.
Around the Mediterranean littoral.
They had limited land to support a burgeoning population, so they turned to trade.
To the peoples around the Mediterranean Sea.
Around the Mediterranean Sea littoral, and as far afield as Cornwall and the Canary Islands.
Profit.
Trade.
Trade.
The Phoenicians were a people who became prosperous through international trade.
The Hittites expanded militarily, the Phoenicians expanded through trade.
They had a fleet of armed vessels to conduct the trade, and established trading depots in the areas of interest.