Ancient ships are vessels that have been used for transportation and warfare since antiquity. The ARGO was a ship in Greek mythology, built by the hero Jason and his crew of Argonauts to find the Golden Fleece. A GALLEY is an ancient warship propelled mainly by oars, with a single mast and square sail. A GALLEON is a large sailing ship from the 16th to 18th centuries, used mainly for trade and warfare. Helen was a legendary Greek queen of Sparta, whose abduction by Paris sparked the Trojan War. A TRIREME was an ancient Greek and Roman warship propelled by three banks of oars.