Copán is one of the most impressive sites for ruins of the ancient Maya civilization. Situated in western Honduras, Copán is where the great Maya civilization flourished. Though other Maya ruins have been found in neighboring countries, no other quite like Copán has been discovered. Archaeologists search the area, like an Odyssean journey, because many claim that other ruins must be in the immediate area. Though no other significant ruins have been found, Copán provides scholars plenty to study and learn from still today in the 21st century.

Which is the historical allusion?
Is it copan or odyssean journey
odyssean journey
copan
21st century

Which is the answer?

Why is that the answer?

I want to say it copan because it's an city that has a historical record.

It's Odyssean journey. In Greek mythology, Odysseus left the Trojan War and sailed around the Mediterranean for 20 years before he finally got home to his wife. Of course he had many fantastic adventures during his Odyssean journey.

The historical allusion in this passage is "Odyssean journey."