For 1,600 years, this city — Turkey’s largest — has been built and destroyed, erected and erased, as layer upon layer of life has thrived on its seven hills.
Today, Istanbul is a city of 13 million, spread far beyond those hills. And on a long-farmed peninsula jutting into Lake Kucukcekmece, 13 miles west of the city center, archaeologists have made an extraordinary find.
The find is Bathonea, a substantial harbor town dating from the second century B.C. Discovered in 2007 after a drought lowered the lake’s water table, it has been yielding a trove of relics from the fourth to the sixth centuries A.D., a period that parallels Istanbul’s founding and its rise as Constantinople, a seat of power for three successive empires — the Eastern Roman, Byzantine and Ottoman.
While there are some historical records of this early period, precious few physical artifacts exist. The slim offerings in the Istanbul section of the Archaeological Museums here reflect that, paling in comparison with the riches on display from Anatolia, Mesopotamia and Lebanon.
So Bathonea (pronounced bath-oh-NAY-uh) has the potential to become a “library of Constantinople,” says Sengul Aydingun, the archaeologist who made the initial discovery.
After the drought exposed parts of a well-preserved sea wall nearly two and a half miles long, Dr. Aydingun and her team soon saw that the harbor had been equipped with docks, buildings and a jetty, probably dating to the fourth century. Other discoveries rapidly followed. In the last dig season alone, the archaeologists uncovered port walls, elaborate buildings, an enormous cistern, a Byzantine church and stone roads spanning more than 1,000 years of occupation.