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Sunken Civilizations


Thonis-Heracleion: From Legend to Reality

Thonis-Heracleion (the Egyptian and Greek names of the city) is a city lost between legend and reality. Before the foundation of Alexandria in 331 BC, the city knew glorious times as the obligatory port of entry to Egypt for all ships coming from the Greek world. It had also a religious importance because of the temple of Amun, which played an important role in rites associated with dynasty continuity. The city was founded probably around the 8th century BC, underwent diverse natural catastrophes, and finally sunk entirely into the depths of the Mediterranean in the 8th century AD. 

Prior to its discovery in 2000 by the European Institute for Underwater Archaeology (IEASM), directed by Franck Goddio, no trace of Thonis-Heracleion had been found. Its name was almost razed from the memory of mankind, only preserved in ancient classic texts and rare inscriptions found on land by archaeologists. The Greek historian Herodotus (5th century BC) tells us of a great temple that was built where the famous hero Herakles first set foot on to Egypt. He also reports of Helen’s visit to Heracleion with her lover Paris before the Trojan War. More than four centuries after Herodotus’ visit to Egypt, the geographer Strabo observed that the city of Heracleion, which possessed the temple of Herakles, is located straight to the east of Canopus at the mouth of the Canopic branch of the River Nile.


The Discovery

With a unique survey-based approach that utilises the most sophisticated technical equipment, Franck Goddio and his team, in cooperation with the Egyptian Supreme Council of Antiquities, were able to locate, map and excavate parts of the city of Thonis-Heracleion, which lies 6.5 kilometres off today’s coastline. The city is located within an overall research area of 11 by 15 kilometres in the western part of Aboukir Bay at a depth of approx. 10 metres. Research started in 1996. It took years to map the entire area. First discoveries could be made in 2000. Franck Goddio has found important information on the ancient landmarks of Thonis-Heracleion, such as the grand temple of Amun and his son Khonsou (Herakles for the Greeks), the harbours that once controlled all trade into Egypt, and the daily life of its inhabitants. He has also solved a historic enigma that has puzzled Egyptologists over the years: the archaeological material has revealed that Heracleion and Thonis were in fact one and the same city with two names; Heracleion being the name of the city for the Greeks and Thonis for the Egyptians.

What the City looked like

The objects recovered from the excavations illustrate the cities’ beauty and glory, the magnificence of their grand temples and the abundance of historic evidence: colossal statues, inscriptions and architectural elements, jewellery and coins, ritual objects and ceramics - a civilization frozen in time.

The quantity and quality of the archaeological material excavated from the site of Thonis-Heracleion show that this city had known a time of opulence and a peak in its occupation from the 6th to the 4th century BC. This is readily seen in the large quantity of coins and ceramics dated to this period. The port of Thonis-Heracleion had numerous large basins and functioned as a hub of international trade. The intense activity in the port fostered the city’s prosperity. More than seven hundred ancient anchors of various forms and over 70 wrecks dating from the 6th to the 2nd century BC are also an eloquent testimony to the intensity of maritime activity here.

The city extended all around the temple and a network of canals in and around the city must have given it a lake dwelling appearance. On the islands and islets dwellings and secondary sanctuaries were located. Excavations here have revealed beautiful archaeological material such as bronze statuettes. On the north side of the temple to Herakles, a grand canal flowed through the city from east to west and connected the port basins with a lake to the west.

The underwater archaeological research in Thonis-Heracleion is ongoing until today. Franck Goddio estimates that only 5 percent of the city have yet been discovered.

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