The Phrygians
Some historians lay the claim that the tunnels age back to the time of Phrygia. The peak of the Phrygian kingdom was during the late 8th century and it would make sense that they built these tunnels. But there are many that claim that the tunnels come from a time a lot earlier than that.
Noah’s Ark
We’re all familiar with the story of Noah’s ark and how it was a plight to save the animals and life on Earth after the great flood. Well there’s a story that not many know about, and that’s the story of King Yima.