About ten kilometres east of Amasya, in the Yassıçal district on the road to Taşova, the remains of an ancient sanctuary lie on one of the most commanding hilltops in the region. No temple stands there today; there are only foundation stones, surviving fragments of the precinct wall, potsherds and a handful of inscriptions. Yet more than two thousand years ago this hill was one of the most revered sites of the royal cult of the Kingdom of Pontus. The sanctuary was dedicated to Zeus Stratios, the god of armies, and according to the ancient account the sacrificial fire kindled here rose so high that it could be seen from the sea. How much of that account actually belongs to Yassıçal is still debated among scholars.

Zeus Stratios and His Cult

Stratios is a Greek epithet meaning "of the army" or "belonging to the armies." Zeus Stratios is therefore "Zeus of the armies," the god in his warlike and protective aspect. In the Kingdom of Pontus the cult was honoured as the official royal cult of the dynasty, and the kings regarded the god as the guarantor of their armies and their victories. Most of the quasi-autonomous bronze coins struck in the Pontic cities show the head of Zeus or an eagle standing on a thunderbolt, and these images are read as one of the ways in which royal propaganda reached the cities.

Scholars do not agree on the origin of the cult. The common view holds that the Pontic kings identified the god with Ahura Mazda, the protective deity of the Persian Achaemenids whom they took as their model. Others point to Seleucid influence, since the first Pontic kings were linked by marriage to the Seleucid house. Sergej Saprykin, for his part, stresses that the god to whom the kings sacrificed was Zeus under his Greek name, and that Ahura Mazda received no sacrifices. In his view the rituals remained broadly Iranian in outline, while the religious content of the cult was predominantly Hellenic. The Iranian element shows mainly in the king's personal participation in the sacrifice and in the prominent role of fire in the animal offerings; but Saprykin also notes that fire was widely used in Hellenic cults, so that this could be a coincidence, or simply an imitation of the Achaemenid kings. The view that the Zeus Strategos worshipped at Amastris and Zeus Stratios were the same god is also cited as evidence of the cult's Greek character.

Nor was the cult tied to a single place. Franz Cumont regarded Zeus Stratios as the protector of Amaseia and identified several sanctuaries within the city's territory: the area near Yassıçal, Çatalkaya in the district of Phazemonitis, the plain of Khiliokomon, and Gökçebağ near Merzifon. A votive inscription from Çatalkaya was commissioned jointly by the Persian Kyros and the Greek Philetairos. An inscription by a group of citizens of Amaseia making a dedication to the same god in Athens is also known; the group included two Greeks, one Roman and probably one Anatolian. The altar from Çalıca, dated to AD 239/240, shows that the cult continued into the Roman period. From this distribution Saprykin concludes that Iranians, native Anatolians, Greeks and later Romans worshipped the god together.

Amaseia and the Pontic Kings

To understand the bond between Zeus Stratios and Amaseia one must look at the city's place in Pontic history. The firm evidence shows that Amaseia was founded in the Hellenistic period by the Pontic king Mithridates I and made the capital of the kingdom. The city kept its status as capital for about a century, until Pharnakes I captured Sinope (183 BC), and the kings who died during that time were buried in monumental tombs cut into the rock at the foot of the acropolis. After the capital moved to Sinope, Amaseia did not lose its importance for the kings. Its long tenure as the centre of the kingdom, and the fact that the sanctuary of the official royal cult lay within the city's territory, made it especially valuable to the dynasty.

Mithridates VI is reported to have kept a permanent garrison at Amaseia, to have visited the sanctuary of Zeus Stratios near the city often, and to have had an altar built in the god's name; this information rests on an inscription (OGI 365). The city itself was taken in 70 BC by the Roman general Lucullus. Strabo sums up the transition in the words, "Although it is now a province, Amaseia once belonged to kings." Under Roman rule the city remained a leading city of Pontus, and the altar of Zeus Stratios, as will be seen below, stayed among its emblems for centuries through its appearance on coins.

The Sanctuary on the Yassıçal Plateau

The sanctuary lies about ten kilometres east of Amaseia, roughly three kilometres south-west of the mountainous Ebemi (Yassıçal), on the road to Phanaroia (Taşova). According to the elevation given in the local press, the site stands at about 1,300 metres above sea level. In the early twentieth century Franz Cumont identified a sanctuary of Zeus Stratios here, and later research deepened the picture, above all through the work of David French. French's article "Amasian Notes 5," published in Epigraphica Anatolica, deals directly with the temenos of this site.

The site is described as follows. At its centre stands a large monumental altar of trapezoidal shape, surrounded by a broad circular temenos, a sacred precinct. Remains of the precinct wall, potsherds and three inscriptions mentioning Zeus Stratios have been recovered. One inscription reads simply "To Zeus Stratios, the King, as a vow," without saying who the king was. A second does not name the god, but mentions a priest for life who made a dedication from the income of the temple; some scholars think the temple in question was that of Zeus Stratios. The third was set up by the college of archons on behalf of the people of Amaseia.

Perhaps the most interesting detail of the site is the boundary stones found within and around the temenos, inscribed with geographical names. These names denote villages and districts, and in all likelihood all of them lay in the territory of Amaseia. French interpreted them as evidence of a gathering of a sacred and political character: it is thought that representatives of the villages within the city's territory met here at certain times of the year to hold celebrations. This is an interpretation and cannot be taken as the description of a documented ceremony.

The Fire Described by Appian

The scene that made Zeus Stratios famous is Appian's account in section 66 of the Mithridatic Wars (Mithridatika). According to Appian, after driving Murena's garrisons out of Cappadocia, Mithridates VI sacrificed to Zeus Stratios on a lofty pile of wood on a high hill, in the fashion of his country. The procedure is described as follows. The kings themselves carry wood to the heap, and a second, lower pile is built around the first. Milk, honey, wine, olive oil and various kinds of incense are poured over the high pile, while beside the lower one a banquet of bread and meat is laid for those present. Appian compares this to the sacrifices of the Persian kings at Pasargadae. The wood is then set alight. The height of the flame is such that it can be seen from the sea at a distance of a thousand stades, and for days nobody can approach it because of the heat.

Two problems arise from this passage, and both are overlooked in most popular summaries. The first is distance. A thousand stades comes to roughly 180 kilometres; whether this is an exaggeration or the product of a different notion of measure is uncertain. The statement that "the flames could be seen from the sea, kilometres away" should therefore be read as a sentence that relays Appian's words; it cannot be counted as the result of a measurement.

The second problem concerns place. Appian does not say which hill he means. Cumont's 1901 article "Le Zeus Stratios de Mithridate" linked the sacrifice to the altar at Yassıçal, and this connection was long accepted. Christina Williamson's study of 2014, however, examines the field of view from the Yassıçal altar and openly reopens the question of whether it could be the altar Appian described. Another assessment notes that Cumont himself did not insist that Yassıçal was the place Appian mentions, that the distance and the visibility from the sea do not match the account, and that the place in question may have been nearer the Black Sea, around the camp where the army had assembled. The sentence "Mithridates' fire burned at Yassıçal" therefore expresses a frequently made but disputed connection and should not be treated as established fact.

In section 70 of the same book Appian describes a similar ceremony for 73 BC. Before marching into Paphlagonia, Mithridates again offered sacrifices of this kind, and on that occasion a pair of white horses was thrown into the sea as an offering to Poseidon. Scholars, noting that Ahura Mazda and Poseidon were mentioned together in Persian tradition, have used this detail to argue for the Iranian connection of the Zeus Stratios cult. That a warrior king should offer a fiery sacrifice on a high hilltop before setting out on campaign also shows what the cult meant to the dynasty: the ceremony served as a demonstration of legitimacy aimed at the army and the king's subjects.

The Altar on Roman Coins

A frequent image appears on the coins struck at Amaseia in the Roman imperial period. A large rectangular altar, shown with horizontal and vertical lines recalling courses of ashlar masonry, has a tree to its left and an eagle with spread wings above it, and in most examples a quadriga, a four-horse chariot, in the upper zone. Some coins show a blazing bonfire, others a bull lying with its legs in the air on the burning altar. The eagle is also sometimes seen perched on the fire. Saprykin states that these motifs point to the attributes of Zeus Stratios and to the sacrificial tradition of the Pontic dynasty, and that the tree is a tree of life, a symbol of royal power and good fortune.

The earliest examples of this type go back to the reign of Trajan; most of the coins were struck in the later second century and in the Severan period. Coins of Hadrian and Septimius Severus are mentioned separately in the sources, and the same altar appears on the reverse of a bronze coin of Caracalla dated AD 207. The altar is widely accepted as that of Zeus Stratios, and its frequency on the coinage is taken as an indication of the importance it had in the city's eyes. The association of the quadriga and horses with fire is linked to the ancient belief that the chariot of Zeus-Helios dwelt in the clouds above the fire.

The large bronze coins of Severus Alexander, dated AD 231/232, show a view of Amaseia with its twin peaks, walls and gates and, at upper left, a temple. If this temple stands for the sanctuary of Zeus Stratios, then, as Williamson notes, the representation of space is considerably distorted, because the sanctuary lies on a mountain behind the viewer, in the opposite direction from the citadel. Martin Price and Bluma Trell attribute this to a wish to gather the greatest monuments of Amaseia into a single view; the sanctuary does not appear on the earlier city-view coins of Domitian. Barbara Burrell, by contrast, argues that there is no evidence for naming this building Zeus Stratios and that the temple could belong to the imperial cult. Both views are cited today, and the matter has not been settled.

Landscape, Smoke and Power

Williamson's study opens a new window onto the subject. The author first examines the area visible from the altar and asks whether this could be the altar Appian described. She then turns the question around and investigates the regions that had a clear view of the peak, or at least of the columns of smoke rising from it, and finds that these correspond remarkably well to the territory of Amaseia. Combined with the boundary stones bearing place names around the altar and with French's proposal of a sacred and political assembly, this strengthens the following assessment: the sanctuary gave the city's land a focal point not only through the ritual at the summit but also through its visibility from below. The smoke of the sacrifices reminded even the remote corners of one of the largest city territories of the ancient world that there was a centre.

This is a hypothesis, but it is valuable because it allows the sanctuary to be read also as a marker of territory. On this reading the fire lit on the hilltop was a religious offering and at the same time a sign proclaiming the boundaries and the centre of the city.

Strabo and the Sanctuary

Strabo of Amaseia, the geographer, describes his native city in detail in Book XII of the Geographika, which treats Amaseia and its surroundings: the deep valley through which the Iris (Yeşilırmak) flows, the rock-cut tombs, the palace on the acropolis, the cisterns and the tunnels descending to the river. In these passages, however, there is no record of the sanctuary at Yassıçal being mentioned. A claim found in some articles, that "Strabo knew this sanctuary intimately," is therefore unsupported. Our knowledge of the site rests on Appian, the inscriptions, the coins, and the field research of Cumont and French.

Yassıçal Today

In 2006 the Amasya Museum carried out a forty-day rescue excavation at the site, and the coins, ceramic finds and lamps that came to light were taken to the museum. A news report of April 2026 states that no new work has been recorded at the site since then and that nothing remains but foundation stones. The same report relates that the site has from time to time become a haunt of treasure hunters, and that a member of parliament said steps should be taken to restore the temple and show it to visitors. Phrases in the news such as "the only Zeus temple on the Black Sea" and "2,100 years old" belong to newspaper language and do not rest on an excavation report; the report's description of Zeus as the chief god of the Romans also overlooks the Pontic origin of the cult. The value of the site lies, independently of such labels, in its inscriptions, its altar and what it adds to the religious history of Pontus.

On the occasion of Tourism Week the Amasya Provincial Directorate of Culture and Tourism organised a walk along the route between the Tomb of Lokman Hekim and the temple site, during which participants were given information about the place. The site has no comprehensive museum arrangement; anyone wishing to visit would do well to ask the Provincial Directorate of Culture and Tourism about the current situation before going.

Chronology

281-185 BC: Amaseia is the capital of the Kingdom of Pontus from Mithridates I to Pharnakes I; the royal tombs are cut into the city's cliffs.

183 BC: Pharnakes I captures Sinope and the capital moves there.

Around 83-81 BC: The great sacrifice to Zeus Stratios described by Appian, after the success against Murena.

73 BC: A similar sacrifice offered by Mithridates before his Paphlagonian campaign; white horses for Poseidon.

70 BC: Amaseia is taken by Lucullus.

AD 98-117: Under Trajan, the earliest Amaseian coins showing the altar.

AD 207: Bronze coin of Caracalla bearing the altar of Zeus Stratios.

AD 231/232: Under Severus Alexander, a bronze coin depicting the sanctuary or a temple together with a view of the city.

AD 239/240: Altar inscription from Çalıca dedicated to Zeus Stratios.

1901: Franz Cumont's article on Zeus Stratios and the identification of the Yassıçal site.

1996: David French's "Amasian Notes 5" on the temenos of the site.

2006: The Amasya Museum's forty-day rescue excavation.

2014: Christina Williamson's study of the site's visibility.

Bibliography

Primary sources

  • Doğancı, Kamil - Altın, Recep. "Strabon'a Göre Antikçağda Amaseia ve Çevresi." Karadeniz Araştırmaları XV/58, 2018, pp. 1-25.

Academic studies

  • Saprykin, Sergej Ju. "The Religion and Cults of the Pontic Kingdom: Political Aspects." Mithridates VI and the Pontic Kingdom, Black Sea Studies 9, Aarhus University Press, 2009.

Other sources

  • Appianos, Mithridatika (Mithridates Savaşları), sections 66 and 70.
  • Williamson, Christina. "Power, Politics, and Panoramas: Viewing the Sacred Landscape of Zeus Stratios near Amaseia." Space, Place and Identity in Northern Anatolia, Geographica Historica 29, Franz Steiner Verlag, Stuttgart, 2014, pp. 175-188.
  • Cumont, Franz. "Le Zeus Stratios de Mithridate." Revue de l'histoire des religions 43, 1901, pp. 47-57.
  • French, David H. "Amasian Notes 5: The Temenos of Zeus Stratios at Yassıçal." Epigraphica Anatolica 27, 1996, pp. 75-92.
  • Sulla Coins, "Sanctuary of Zeus Stratios" (compilation of coin and source material), sullacoins.com. sullacoins.com
  • İhlas Haber Ajansı, "Karadeniz'deki tek Zeus tapınağı: Sadece temel taşları kaldı", 21 April 2026.

Online sources