Chalcedon (; ; sometimes
transliterated
Transliteration is a type of conversion of a text from one writing system, script to another that involves swapping Letter (alphabet), letters (thus ''wikt:trans-#Prefix, trans-'' + ''wikt:littera#Latin, liter-'') in predictable ways, such as ...
as ) was an ancient
maritime town of
Bithynia, in
Asia Minor
Anatolia (), also known as Asia Minor, is a peninsula in West Asia that makes up the majority of the land area of Turkey. It is the westernmost protrusion of Asia and is geographically bounded by the Mediterranean Sea to the south, the Aegean ...
,
Turkey
Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armen ...
. It was located almost directly opposite
Byzantium
Byzantium () or Byzantion () was an ancient Greek city in classical antiquity that became known as Constantinople in late antiquity and Istanbul today. The Greek name ''Byzantion'' and its Latinization ''Byzantium'' continued to be used as a n ...
, south of
Scutari (modern
Üsküdar
Üsküdar () is a municipality and district of Istanbul Province, Turkey. Its area is 35 km2, and its population is 524,452 (2022). It is a large and densely populated district on the Anatolian (Asian) shore of the Bosphorus. It is border ...
) and it is now a district of the city of
Istanbul
Istanbul is the List of largest cities and towns in Turkey, largest city in Turkey, constituting the country's economic, cultural, and historical heart. With Demographics of Istanbul, a population over , it is home to 18% of the Demographics ...
named
Kadıköy
Kadıköy () is a municipality and Districts of Turkey, district on the Asian side of Istanbul Province, Istanbul Province, Turkey. Its area is 25 km2, and its population is 467,919 (2023). It is a large and populous area in the Asian si ...
. The name ''Chalcedon'' is a variant of Calchedon, found on all the coins of the town as well as in manuscripts of
Herodotus
Herodotus (; BC) was a Greek historian and geographer from the Greek city of Halicarnassus (now Bodrum, Turkey), under Persian control in the 5th century BC, and a later citizen of Thurii in modern Calabria, Italy. He wrote the '' Histori ...
's ''
Histories'',
Xenophon
Xenophon of Athens (; ; 355/354 BC) was a Greek military leader, philosopher, and historian. At the age of 30, he was elected as one of the leaders of the retreating Ancient Greek mercenaries, Greek mercenaries, the Ten Thousand, who had been ...
's ''
Hellenica'',
Arrian's ''
Anabasis'', and other works. Except for the
Maiden's Tower, almost no above-ground vestiges of the ancient city survive in Kadıköy today; artifacts uncovered at Altıyol and other excavation sites are on display at the
Istanbul Archaeological Museum.
The site of Chalcedon is located on a small peninsula on the north coast of the
Sea of Marmara
The Sea of Marmara, also known as the Sea of Marmora or the Marmara Sea, is a small inland sea entirely within the borders of Turkey. It links the Black Sea and the Aegean Sea via the Bosporus and Dardanelles straits, separating Turkey's E ...
, near the mouth of the
Bosphorus
The Bosporus or Bosphorus Strait ( ; , colloquially ) is a natural strait and an internationally significant waterway located in Istanbul, Turkey. The Bosporus connects the Black Sea to the Sea of Marmara and forms one of the continental bo ...
. A stream, called the Chalcis or Chalcedon in antiquity
[ William Smith, LLD, ed. (1854). '' Dictionary of Greek and Roman Geography'']
"Chalcedon"
and now known as the Kurbağalıdere (Turkish: ''stream with frogs''), flows into Fenerbahçe Bay. There, Greek colonists from
Megara
Megara (; , ) is a historic town and a municipality in West Attica, Greece. It lies in the northern section of the Isthmus of Corinth opposite the island of Salamis Island, Salamis, which belonged to Megara in archaic times, before being taken ...
in
Attica
Attica (, ''Attikḗ'' (Ancient Greek) or , or ), or the Attic Peninsula, is a historical region that encompasses the entire Athens metropolitan area, which consists of the city of Athens, the capital city, capital of Greece and the core cit ...
founded the settlement of Chalcedon in 685 BC, some seventeen years before Byzantium.
The Greek name of the ancient town is from its
Phoenician name , meaning "New Town", whence Karkhēd(ōn), as similarly is the name of
Carthage
Carthage was an ancient city in Northern Africa, on the eastern side of the Lake of Tunis in what is now Tunisia. Carthage was one of the most important trading hubs of the Ancient Mediterranean and one of the most affluent cities of the classic ...
. The mineral
chalcedony is named after the city.
Prehistory
The mound of
Fikirtepe has yielded remains dating to the
Chalcolithic period (5500–3500 BC) and attest to a continuous settlement since prehistoric times.
Phoenicians
Phoenicians were an ancient Semitic group of people who lived in the Phoenician city-states along a coastal strip in the Levant region of the eastern Mediterranean, primarily modern Lebanon and the Syrian coast. They developed a maritime civi ...
were active traders in this area.
Pliny states that Chalcedon was first named Procerastis, a name which may be derived from a point of land near it: then it was named Colpusa, from the harbour probably; and finally Caecorum Oppidum, or the town of the blind.
Megarian colony
Chalcedon originated as a
Megarian colony in 685 BC. The colonists from Megara settled on a site that was viewed in antiquity as so obviously inferior to that visible on the opposite shore of the Bosphorus (with its small settlements of Lygos and Semistra on
Seraglio Point
Sarayburnu (, meaning ''Palace Cape''; known in English as the Seraglio Point) is a promontory quarter separating the Golden Horn and the Sea of Marmara in Istanbul, Turkey. The area is where the Topkapı Palace and Gülhane Park stand. Saraybur ...
), that the 6th-century BC Persian general
Megabazus allegedly remarked that Chalcedon's founders must have been blind. Indeed, Strabo and Pliny relate that the
oracle of Apollo told the Athenians and Megarians who founded Byzantium in 657 BC to build their city "opposite to the blind", and that they interpreted "the blind" to mean Chalcedon, the "City of the Blind".
Nevertheless, trade thrived in Chalcedon; the town flourished and built many temples, including one to
Apollo
Apollo is one of the Twelve Olympians, Olympian deities in Ancient Greek religion, ancient Greek and Ancient Roman religion, Roman religion and Greek mythology, Greek and Roman mythology. Apollo has been recognized as a god of archery, mu ...
, which had an oracle. Chalcedonia, the territory dependent upon Chalcedon, stretched up the Anatolian shore of the Bosphorus at least as far as the temple of
Zeus Urius, now the site of
Yoros Castle, and may have included the north shore of the Bay of
Astacus which extends towards
Nicomedia
Nicomedia (; , ''Nikomedeia''; modern İzmit) was an ancient Greece, ancient Greek city located in what is now Turkey. In 286, Nicomedia became the eastern and most senior capital city of the Roman Empire (chosen by the emperor Diocletian who rul ...
. Important villages in Chalcedonia included Chrysopolis (the modern
Üsküdar
Üsküdar () is a municipality and district of Istanbul Province, Turkey. Its area is 35 km2, and its population is 524,452 (2022). It is a large and densely populated district on the Anatolian (Asian) shore of the Bosphorus. It is border ...
) and Panteicheion (
Pendik). Strabo notes that "a little above the sea" in Chalcedonia lies "the fountain Azaritia, which contains small crocodiles".
In its early history Chalcedon shared the fortunes of Byzantium. Later, the 6th-century BC Persian
satrap
A satrap () was a governor of the provinces of the ancient Median kingdom, Median and Achaemenid Empire, Persian (Achaemenid) Empires and in several of their successors, such as in the Sasanian Empire and the Hellenistic period, Hellenistic empi ...
Otanes captured it. The city vacillated for a long while between the
Lacedaemonian and the
Athenian
Athens ( ) is the Capital city, capital and List of cities and towns in Greece, largest city of Greece. A significant coastal urban area in the Mediterranean, Athens is also the capital of the Attica (region), Attica region and is the southe ...
interests.
Darius the Great
Darius I ( ; – 486 BCE), commonly known as Darius the Great, was the third King of Kings of the Achaemenid Empire, reigning from 522 BCE until his death in 486 BCE. He ruled the empire at its territorial peak, when it included much of West A ...
's bridge of boats, built in 512 BC for his
Scythia
Scythia (, ) or Scythica (, ) was a geographic region defined in the ancient Graeco-Roman world that encompassed the Pontic steppe. It was inhabited by Scythians, an ancient Eastern Iranian equestrian nomadic people.
Etymology
The names ...
n campaign, extended from Chalcedonia to
Thrace
Thrace (, ; ; ; ) is a geographical and historical region in Southeast Europe roughly corresponding to the province of Thrace in the Roman Empire. Bounded by the Balkan Mountains to the north, the Aegean Sea to the south, and the Black Se ...
. Chalcedon formed a part of the
kingdom of Bithynia, whose king
Nicomedes willed Bithynia to the Romans upon his death in 74 BC.
Roman city
The city was partly destroyed by
Mithridates. The governor of Bithynia,
Cotta, had fled to Chalcedon for safety along with thousands of other Romans. Three thousand of them were killed, sixty ships captured, and four ships destroyed in Mithridates' assault on the city.
During the Empire, Chalcedon recovered, and was given the status of a free city. It fell under the repeated attacks of the
barbarian hordes who crossed over after having ravaged Byzantium, including some referred to as Scythians who attacked during the reign of Valerian and Gallienus in the
mid 3rd century.
Byzantine and Ottoman suburbs
Chalcedon suffered somewhat from its proximity to the new imperial capital at
Constantinople
Constantinople (#Names of Constantinople, see other names) was a historical city located on the Bosporus that served as the capital of the Roman Empire, Roman, Byzantine Empire, Byzantine, Latin Empire, Latin, and Ottoman Empire, Ottoman empire ...
. First the Byzantines and later the
Ottoman Turks
The Ottoman Turks () were a Turkic peoples, Turkic ethnic group in Anatolia. Originally from Central Asia, they migrated to Anatolia in the 13th century and founded the Ottoman Empire, in which they remained socio-politically dominant for the e ...
used it as a quarry for building materials for
Constantinople
Constantinople (#Names of Constantinople, see other names) was a historical city located on the Bosporus that served as the capital of the Roman Empire, Roman, Byzantine Empire, Byzantine, Latin Empire, Latin, and Ottoman Empire, Ottoman empire ...
's monumental structures. Chalcedon also fell repeatedly to armies attacking Constantinople from the east.
In 361 AD it was the location of the
Chalcedon tribunal, where
Julian the Apostate brought his enemies to trial.
In 451 AD an
ecumenical council
An ecumenical council, also called general council, is a meeting of bishops and other church authorities to consider and rule on questions of Christian doctrine, administration, discipline, and other matters in which those entitled to vote are ...
of Christian leaders convened here. See below for this
Council of Chalcedon.
The general
Belisarius
BelisariusSometimes called Flavia gens#Later use, Flavius Belisarius. The name became a courtesy title by the late 4th century, see (; ; The exact date of his birth is unknown. March 565) was a military commander of the Byzantine Empire under ...
probably spent his years of retirement on his estate of Rufinianae in Chalcedonia.
Beginning in 616 and for at least a decade thereafter, Chalcedon furnished an encampment to the
Persians
Persians ( ), or the Persian people (), are an Iranian ethnic group from West Asia that came from an earlier group called the Proto-Iranians, which likely split from the Indo-Iranians in 1800 BCE from either Afghanistan or Central Asia. They ...
under
Chosroes II (cf.
Siege of Constantinople (626)). It later fell for a time to the Arabs under
Yazid (cf.
Siege of Constantinople (674)).
Chalcedon was badly damaged during the
Fourth Crusade
The Fourth Crusade (1202–1204) was a Latin Christian armed expedition called by Pope Innocent III. The stated intent of the expedition was to recapture the Muslim-controlled city of Jerusalem, by first defeating the powerful Egyptian Ayyubid S ...
(1204). It came definitively under
Ottoman rule under
Orhan Gazi a century before the
Ottoman conquest of Constantinople.
Ecclesiastical history

Chalcedon was an
episcopal see
An episcopal see is the area of a bishop's ecclesiastical jurisdiction.
Phrases concerning actions occurring within or outside an episcopal see are indicative of the geographical significance of the term, making it synonymous with ''diocese'' ...
at an early date and several Christian
martyr
A martyr (, ''mártys'', 'witness' Word stem, stem , ''martyr-'') is someone who suffers persecution and death for advocating, renouncing, or refusing to renounce or advocate, a religious belief or other cause as demanded by an external party. In ...
s are associated with Chalcedon:
* The virgin
St. Euphemia and her companions in the early 4th century; the cathedral of Chalcedon was consecrated to her.
* St. Sabel the Persian and his companions.
It was the site of various ecclesiastical councils. The Fourth
Ecumenical Council
An ecumenical council, also called general council, is a meeting of bishops and other church authorities to consider and rule on questions of Christian doctrine, administration, discipline, and other matters in which those entitled to vote are ...
, known as 'the'
Council of Chalcedon, was convened in 451 and defined the human and divine natures of
Jesus
Jesus (AD 30 or 33), also referred to as Jesus Christ, Jesus of Nazareth, and many Names and titles of Jesus in the New Testament, other names and titles, was a 1st-century Jewish preacher and religious leader. He is the Jesus in Chris ...
, which provoked the schism with the churches composing
Oriental Orthodoxy
The Oriental Orthodox Churches are Eastern Christian churches adhering to Miaphysite Christology, with approximately 50 million members worldwide. The Oriental Orthodox Churches adhere to the Nicene Christian tradition. Oriental Orthodoxy is ...
.
After the council, Chalcedon became a
metropolitan see
Metropolitan may refer to:
Areas and governance (secular and ecclesiastical)
* Metropolitan archdiocese, the jurisdiction of a metropolitan archbishop
** Metropolitan bishop or archbishop, leader of an ecclesiastical "mother see"
* Metropolitan ...
, but without
suffragan
A suffragan bishop is a type of bishop in some Christian denominations.
In the Catholic Church, a suffragan bishop leads a diocese within an ecclesiastical province other than the principal diocese, the metropolitan archdiocese; the diocese led ...
s. There is a list of its bishops in
Le Quien
Michel Le Quien (8 October 1661, Boulogne-sur-Mer – 12 March 1733, Paris) was a French historian and theologian.
Biography
Le Quien studied at , Paris, and at twenty entered the Dominican convent in Faubourg Saint-Germain, where he made ...
, completed by
Anthimus Alexoudes, revised for the early period by
Pargoire. Among others are:
*
St. Adrian, a martyr;
* St. John, Sts. Cosmas and
Nicetas, during the Iconoclastic period;
*
Maris, the
Arian;
* Heraclianus, who wrote against the
Manichaeans and the
Monophysites;
* Leo, persecuted by
Alexius I Comnenus.
Greek and Catholic successions
The
Greek Orthodox
Greek Orthodox Church (, , ) is a term that can refer to any one of three classes of Christian Churches, each associated in some way with Greek Christianity, Levantine Arabic-speaking Christians or more broadly the rite used in the Eastern Rom ...
Metropolitan of Chalcedon holds senior rank (currently third position) within the
Greek Orthodox patriarchal synod of Constantinople. The incumbent is Metropolitan Athanasios Papas. The cathedral is that of
St. Euphemia.
After the
Great Schism, the
Latin Church
The Latin Church () is the largest autonomous () particular church within the Catholic Church, whose members constitute the vast majority of the 1.3 billion Catholics. The Latin Church is one of 24 Catholic particular churches and liturgical ...
retained Chalcedon as a
titular see
A titular see in various churches is an episcopal see of a former diocese that no longer functions, sometimes called a "dead diocese". The ordinary or hierarch of such a see may be styled a "titular metropolitan" (highest rank), "titular archbi ...
with archiepiscopal rank, with known incumbents since 1356. Among the
titular bishop
A titular bishop in various churches is a bishop who is not in charge of a diocese.
By definition, a bishop is an "overseer" of a community of the faithful, so when a priest is ordained a bishop, the tradition of the Catholic, Eastern Orthodox an ...
s named to this see were
William Bishop (1623–1624) and
Richard Smith (1624–1632), who were appointed
vicars apostolic for the pastoral care of Catholics in England at a time when that country had no Catholic diocesan bishops. Such appointments ceased after the
Second Vatican Council
The Second Ecumenical Council of the Vatican, commonly known as the or , was the 21st and most recent ecumenical council of the Catholic Church. The council met each autumn from 1962 to 1965 in St. Peter's Basilica in Vatican City for session ...
and the titular see has not been assigned since 1967.
Chalcedon (Titular See)
/ref>
Chalcedon has also been a titular archbishopric for two Eastern Catholic church dioceses:
* Syrian ( Antiochian Rite, established in 1922; vacant since 1958)
* Armenian Catholic ( Armenian Rite, established 1951, after two incumbents, suppressed in 1956)
Notable people
* Euphemia (3rd century AD), Christian saint and martyr, patron saint
A patron saint, patroness saint, patron hallow or heavenly protector is a saint who in Catholicism, Anglicanism, Eastern Orthodoxy or Oriental Orthodoxy is regarded as the heavenly advocate of a nation, place, craft, activity, class, clan, fa ...
of Chalcedon
* Boethus of Chalcedon (2nd century BC), Greek sculptor
* Herophilos (2nd century BC), Greek physician
* Phaleas of Chalcedon (4th century BC), Greek statesman
* Thrasymachus (5th century BC), Greek sophist
* Xenocrates
Xenocrates (; ; c. 396/5314/3 BC) of Chalcedon was a Greek philosopher, mathematician, and leader ( scholarch) of the Platonic Academy from 339/8 to 314/3 BC. His teachings followed those of Plato, which he attempted to define more closely, of ...
(4th century BC), Greek philosopher
See also
* List of ancient Greek cities
This is an incomplete list of ancient Greek cities, including colonies outside Greece, and including settlements that were not sovereign '' poleis''.
Many colonies outside Greece were soon assimilated to some other language but a city is included h ...
* List of traditional Greek place names
This is a list of Greek place names as they exist in the Greek language.
*Places involved in the history of Greek culture, including:
**Historic Greek regions, including:
***Ancient Greece, including colonies and contacted peoples
*** Hellenis ...
* Chalkidona, Greece
References
*
{{Authority control
Greek colonies in Bithynia
Megarian colonies
Former populated places in Turkey
Kadıköy
Populated places established in the 7th century BC
Members of the Delian League
Populated places in Bithynia
Catholic titular sees in Asia
Places in Greek mythology