Analyses conducted at Necmettin Erbakan University Science and Technology Research and Application Center (BITAM) determined that the spongy residue was fermented bread from 6600 B.C.

As Turkish academics and archeologists continue digging deep in a historical site located in Cobankale castle of northwestern Yalova province, they unearth new historical artifacts, the latest of which is a centuries-old cistern.

Zerrin Erdinc, deputy head of the excavation team, said; The location and nature of tomb that we call heroon, makes us to believe that it belongs to Azan, the founder of the city.