Gadara holds one of the world’s longest underground aqueducts

Gadara has been identified as the ancient city half-hidden beneath modern Umm Qais in Jordan. 

Until late Hellenistic times, the citizens of Gadara had to rely on a variety of cisterns that collected rainwater. So far, no less than 75 such reservoirs have been identified with a storage capacity varying from 6 to 450 cubic meters. After the arrival of the Romans in the 1^st century BC, the growing population spread out over a wider area, needing more water than the cisterns could provide. 

Water had to be brought into Gadara from a spring 11 kilometers away. It probably flowed through a series of clay pipes buried underground, called Qanat Turab, making a detour around the valleys. Near Gadara, the water crossed another valley by means of a bridge and reached a tunnel under the city’s Acropolis. From here, it was distributed to the baths, Nymphaeums, and houses. 

By the end of the 1^st century AD, however, the population of Gadara and neighboring settlements had exploded to reach about 50,000 people. To meet their needs, a daily debit of 300-400 liters per person was required. Together with the cities of Adra’a and Abila, Gadara decided to build a second long-distance water supply running through a series of tunnels cut in the rock. The project, known as Qanat Fir’aun, was started in 90 AD to be completed in several phases by 210 AD. It is known to have been functioning until the devastating earthquake of 747 AD, which destroyed Gadara. 

[Picture from Culture in Crisis, credit Paul Fischer]

I already touched on the subject in my earlier post, Preservation of the Roman aqueduct at Gadara, without digging deeper into the prowess of the Roman engineers. This elaborate structure started at a reservoir at Wadi Harier, near the Syrian border village of Dille, with a storage capacity of 4 to 6 million cubic meters. The water covered a distance of 170 kilometers to Gadara using gravity, in this case, a gradient of about 217 meters! How these engineers from antiquity managed to figure this out without the help of our modern technology is a pure wonder. For a good 100 kilometers of its course, the water ran through a system of tunnels. On its way, 14 tributaries from Lake Muzarib in southern Syria and several springs added their waters to the main stream. For the maintenance of the entire system, karezes or qanats, providing underground access, were added at regular intervals. 

Access to both aqueducts can be found on the Acropolis of Gadara, i.e., where the remains of the abandoned Ottoman village of Umm Qais now stand. Today’s tourist can visit the last section of this 170-kilometer-long tunnel in a guided tour. A real treat!

Abukir, including Canopus and Thonis-Heracleion

The waters along the Egyptian Coast hold a treasure trove of statues, columns, reliefs, and other architectural elements. Flooded ancient city streets with their temples, abandoned harbors and wooden ships yield a great number of surprises. 

Centuries before the foundation of Alexandria by Alexander the Great, the Greeks had established trade centers in Egypt. The oldest was Thonis-Heracleion in the 8^th century BC (see: Heracleion, ancient Greek port in Egypt), located six kilometers northeast of Abukir. Canopus was first mentioned in the 6^th century BC and lies right next to Abukir, nowadays on the edge of modern Alexandria. 

Since 1992, underwater archaeologist Franck Goddio has been investigating the larger area of the Bay of Abukir together with the Egyptian Ministry for Antiquities. In 2000, thanks to his advanced sonar and magnetic scanning technology, he discovered Thonis-Heracleion and Canopus (see: Getting around in the Nile Delta). He has founded the Institut Européen d’Archéologie Sous-Marine (IEASM) and works closely with a team of archaeologists, Egyptologists, historians, geologists, geophysicists, computer engineers, and the like. He regularly shares his finds on his own website, which contains a wonderful page with pictures of his discoveries. Clicking on a picture reveals the full story of the artifact. 

[Picture from Egypt Museum by Jean-Pierre Dalbéra] 

My absolute favorite is this stunning statue, representing Queen Arsinoe II, the sister-wife of King Ptolemy II, that was discovered in the flooded ruins of Canopus.

The queen’s portrayal here is more Greek than Egyptian. She is the embodiment of the Greek goddess Aphrodite, especially thanks to the “wet look” of her dress clinging to her body. After Arsinoe died in 270 BC, Ptolemy II issued a decree that all temples of Egypt should host a cult statue of the divine Arsinoe. So much to honor one’s spouse! 

But, of course, you are free to pick your own preference and learn more about the great work done by Franck Goddio all those years. There is more than enough for future generations to discover under the sandy bottom of Abukir’s Bay.

Kayseri and its hidden Hippodrome

Kayseri was called Caesarea. To be named after Caesar, in this case Emperor Tiberius, who reigned from 14 AD to 37 AD, underscores its importance. 

The city was founded around 2000 BC as a trading post for the Hittites and the Assyrians. In Hellenistic times, it was known as Mazaka, and changed name again into Eusebia under Cappadocian rule. 

[Picture from Arkeonews]

The Hippodrome, however, is attributed to the Romans and was probably built in the 1^st century BC or early 1^st century AD. It has not been excavated yet, as it lies underneath the local market, which in turn sits on an ancient landfill that was heavily used from 1950 until 1980. Ten thousand tons of debris were deposited, creating a layer nearly 20 meters thick. It remained hidden until its contours appeared in a 19^th-century drawing, where it was labeled a Circus. 

The Roman Hippodrome is one of the three known examples found in Anatolia, i.e., in Ephesos and Pergamon. This structure is about 450 meters long, and its outlines with the curved ends remain intact. 

In late antiquity, Caesarea was an important city that may have counted 50,000 inhabitants. It sat on the main trade routes connecting to the Persian Royal Road and linking Sinope to the Euphrates.

There are no plans yet to start the excavation of the Hippodrome, partly because of the local open-air market that is still held there, partly because of the tons of debris that need to be removed. In the meantime, the site is registered as a protected area and will be monitored with geophysical equipment to gather as much information as possible. 

The tomb of Alexander the Great

The tales about the tomb of Alexander are countless, varying from pure myth and wishful thinking to serious studies and well-documented analysis. 

In August 2021, I posted a summary of what was known so far: Endless fuss over the tomb of Alexander the Great. Here, I included the name of Greek archaeologist Liana Souvaltzi, who assumed that the king’s mummy was transferred to Siwah as Ptolemy fulfilled Alexander’s wish. In her theory, she ignored the recorded visits of the Roman emperors to Alexander's tomb in Alexandria. 

Liana Souvaltzi started excavating the Temple of Amon-Ra in Siwah in 1989, but in 1995, the Greek and Egyptian governments suddenly blocked her permit without explanation. 

[Reconstruction of what the monument in the Siwa Oasis would have once looked like. Credit: Liana Souvaltzi]

In my mind, her story was one of many, like the one I posted in October 2024:  Another pertinent theory about Alexander’s Tomb that was another dead-end road.

It now transpires that I missed Liana Souvaltzi's plea published in December 2014, also in Ancient Origins, upon their invitation. The full story can be read in this article. I'm quoting a few of the key arguments hereafter, in italics.

The archaeological site is 15 kilometers west of the Ammon Temple, which is in the town of Siwa. The area where the tomb is located is named El Maraki. The tomb complex covers an enormous area of 12,000 square meters, of which 5,000 square meters were excavated.

From the size of the tomb itself, which is 51m long and has an outer width of 10.25m, it is obvious that it could only have been destined for use as a burial monument for the worship of a very important person, such as a king. The tomb sits on a rock, underneath which lies an enormous gold mine, the first found in the western desert. It consists of an entrance, corridor, and three chambers.

It is a good argumentation and certainly raises questions about the presence of Greek architectural elements in Siwah and the size/purpose of the monument. A link with Alexander is not impossible. However, although the monument she defined as a tomb was colossal, it contained no actual tomb or sarcophagus to prove Alexander's presence. 

[Cleaning up the corridor leading to the tomb. Credit: Liana Souvaltzi]

There were, however, three inscriptions referring to Alexander:

Finally, we found three different honorary inscriptions written in Greek uppercase letters. The first inscription could be dated from its text to between 290 and 284 BC. The first line of the inscription bore the name ΑΛΕΞΑΝΔΡΟΣ ΑΜΜΩΝΟΣ ΡΑ (ALEXANDER AMMON RA).

The second inscription can be dated between 108 and 115 BC and is an honorary inscription and was placed by the Emperor Traianus in honour of Alexander, whom he admired and respected as a god.

The third inscription is a fragment which indicates the number of the inhabitants of the oasis and the army, which was a part of the military forces assigned to guard the royal tomb of Alexander the Great.

The discovery of these inscriptions and their meanings was announced in the course of the Italian – Egyptian Congress in Rome on 15 November 1995.

In line with the earlier and later theories that circulate on the tomb of Alexander and its whereabouts, there is the thorough destruction of this Siwah Tomb. The floors, walls, corridors, and decorative elements have been destroyed and turned into a flooded garbage dump. 

Whatever promising tracks scholars and archaeologists investigate to find the last resting place of this great conqueror, they are stopped in their efforts at one point or another. Poor Alexander! He deserves so much more attention, care, and respect.

Roman glassware, as good as new

I have always been fascinated by Roman glassware in all its shapes, forms, and colors (see: The beauty of ancient glassware). 

Yet, I never came across glassware that survived in such pristine condition as that retrieved from the Cape Corse shipwreck in 2023. It lies on a Roman commercial route connecting Luna (modern Luni, Italy) to Massalia (modern Marseille), between Cape Corse in Corsica and the island of Capraia in Italy. It is the second known find with a cargo of almost exclusively glass, either in its raw state as blocks of various sizes or in the finished product of blown glass tableware. 

[Picture from Soprintendenza Nazionale per il Patrimonio Culturale Subacqueo]

The ship sank around 100 AD, and although it was discovered in 2013, we had to wait ten years for an international team of researchers to explore the wreck with two underwater drones. This modern equipment allowed them to retrieve the major part of its precious cargo using a very delicate claw system. 

A few thousand glass artifacts have been recovered, including drinking glasses, bottles, plates, cups, small bowls, and an ointment jar; also two bronze basins and several amphorae of different type such as oriental, the Beirut type, and four Gallic vessels. Combined with the raw glass, this find led the archaeologists to believe that the ship must have originated from a port in the Middle East, possibly Lebanon or Syria, and was headed towards the coast of Provence in Southern France. 

The Syrians were probably the first to have mastered the art of glass blowing as early as the 1^st century BC. Craftsmen from Sidon, Aleppo, Hama, and Palmyra developed the technique of using a blowpipe to shape molten glass, which allowed them to create objects faster than from cast glass. As a result, Syria became one of the most important glass production centers in the world, before, during, and after the Roman Empire. 

The main trade route started in Antioch (modern Antakya in Turkey) to supply the markets of Alexandria, Byzantium, and Rome, which, in turn, had steady connections with Massalia.

The question remains, how these thousands of glass objects were still undamaged and survived in such good conditions after resting at the bottom of the Mediterranean for two thousand years.