Xerxes Canal


The Xerxes Canal was a navigable canal through the base of the Mount Athos peninsula in Chalkidiki, northern Greece, built by king Xerxes I of Persia in the 5th century BCE. It is one of the few monuments left by the Persian Empire in Europe.

Location

The canal is located near the village of Nea Roda in the Athos peninsula. Starting to the east of Nea Roda on the north coast it follows a fairly straight south-westerly direction towards the south coast where it ends west of the village Tripiti. The canal is completely covered by sediments, but its outline is visible from air photos, and has been detected by several surveys. The total length of the canal was two km, its width was 30 meters, and it was three meters deep, enough for a trireme to pass. One end is at: , the other at .

History

According to the Histories of the ancient Greek historian Herodotus, which recounts the events of the Greco-Persian Wars, the Persian commander Mardonios, in 492 BCE, lost a great part of his fleet, 300 ships and 20,000 men, in a storm going around the cliffs of the Athos peninsula, during the First Persian invasion of Greece.
Xerxes, in preparation for the Second Persian invasion of Greece, in 483 BCE ordered a channel built through the Athos isthmus in order to avoid falling prey to the same catastrophe. Herodotus speculates that pride also was a motivating factor:
As far as I can judge by conjecture, Xerxes gave the command for this digging out of pride, wishing to display his power and leave a memorial; with no trouble they could have drawn their ships across the isthmus, yet he ordered them to dig a canal from sea to sea, wide enough to float two triremes rowed abreast.

The work, led by the two Persians Bubares and Artachaies, lasted three years. It was completed in 480 BCE by forcibly recruited locals, as well as Egyptian and Phoenician workers. The length, according to Herodotus, was 12 stadia, and it was capped at both ends by dikes to prevent surf from clogging it. The canal soon fell into disrepair as it was not used after the Persian fleet had passed through on their way first to the battle of Artemisium and then on to that of Salamis.
The canal still formed part of the landscape 80 years later as it is mentioned in passing by Thucidydes in The History of the Peloponnesian War from around 400 BCE:
After the taking of Amphipolis, Brasidas and his allies marched to the so-called Actè, or coastland, which runs out from the canal made by the Persian King and extends into the peninsula; it ends in Athos, a high mountain projecting into the Aegean sea.

Archaeology

The veracity of Herodotus' claims was doubted already in ancient times, but land surveys and geophysical investigations of the peninsula have confirmed the existence of the canal.
In the second century BCE, Demetrius of Scepsis stated based on first hand information that there indeed had been a canal there, but he could not trace all of it.
Three separate modern land surveys, led by the Frenchman M. Choiseul-Gouffier in the 18th century, by T. Spratt of England in 1838, and by the German A. Struck in 1901, all found evidence of the canal in the central part of the isthmus. But as late as 1990 the length and width of the canal was in dispute, as was the question of whether the canal reached all the way across the isthmus or if ships were dragged through parts of it.
A British and Greek collaborative geophysical investigation launched in the 1990s found through the use of seismic survey and sediment analysis that the canal had crossed the whole isthmus. Herodotus' account was vindicated as they also confirmed that the canal was constructed rapidly and that it was only used for a short period of time.
Recent studies suggest the workers were both regular Achaemenid soldiers and recruited local Balkan people with the legal status of kurtaš who were paid for and fed from the Persian treasury.

Ancient sources