Archaeologists and researchers were busy analysing the rocks used to construct the castle, hoping to find an answer on exactly when the castle was built. The lead underwater photographer, Tahsin Ceylan, noted that: “archaeologists are the sole deciders on the matter”. Even then, the archaeologists’ opinions on the subject greatly differed and they needed to come to a consensus. Another expert was called upon to look into the matter. In a report on Lake Van, he published this: “A high wall from the post-urarty era runs under the lake”.
The archaeologists had different opinions on when the castle was built. While some thought that the castle had its origin before the Urartian period, others thought it was built after this time. Still, others said that the castle was built during the Urartian era. With three diverging opinions, it was difficult to know who was right. But the expert P. Hulin had a particular theory on this subject. He carried out in depth research on the archaeological site and made a startling discovery that would shed more light on exactly when the castle was built.