The Mediterranean Sea.
The Phoenician trading ship spread their writing system around the Mediterranean Sea.
The Phoenician word for sea is "yam"
All around the Mediterranean Sea in the west, and to Mesopotamia in the east.
Through necessity, tuition and practice to carry out trade in the Mediterranean Sea and beyond.
The alphabet simplifies trade between people that spoke different languages. Phoenician sea trade,in return ,helped the alphabet to spread
They had Phoenician trading colonies established along them to promote local exchange of goods, and were located at appropriate locations around the Mediterranean Sea, and as far as Britain where tin was brought back from.
The Phoenician city-states had limited agricultural land to support a growing population. They had to expand by conquest or trade. They chose trade.
Trade.
Located on the Mediterranean Sea, it led them to sea trade.
The Phoenician traders spread the alphabet through the Mediterranean Sea. It was taken up by the Greeks and adapted as their own alphabet, and they spread this to their own colonies.
Each had its role in building up the Phoenician trading empire.