Final answer:
The term that does not relate to the others is Vasco da Gama.
Step-by-step explanation:
The term that does not relate to the others is Vasco da Gama. O caravels, O galleons, and O longships all refer to types of ships used during different historical periods. Vasco da Gama, on the other hand, was a Portuguese explorer who is known for being the first European to reach India by sea.
Learn more about Ship types and historical explorers