To establish new cities and for trade.
c
Seas were a source of trade and food - also a great advantage to travel.
The ancient Greeks lived in cities (poleis) along the coasts of the Mediterranean and Black Seas.
They used unicorns.
Aegean, Ionian and Mediterranean
Poseidon, ruler of the seas.
for food religon and travel
for food religon and travel
they were important transportation routes for Greek people.
For marine foodstuffs, for transportation and for warfare.
The Mediterranean and Black seas, around the littorals of which their 2,000-odd independent city-states were located.
If you are travelling north and you turn right you will be travelling east.