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The 'Seleucid Empire' was a Hellenistic successor state of Alexander the Great's dominion. At its greatest extent, the Empire comprised central Anatolia, the Levant, Mesopotamia, Persia, Turkmenistan, Pamir and the Indus valley.
There were over 30 kings of the Seleucid dynasty from 323 to 60 BC.

Contents

The partition of Alexander's empire (323-281 BC)

The rise of Seleucus

Battle of Ipsus (301 BC)

Cultural exchanges

An overextended domain

Greco-Bactrian secession (C. 245 BC)

Parthian secession (C. 245 BC)

Eclipse and revival

The power of Rome and renewed disintegration

Civil war and further decay

Collapse of the Seleucid Empire

Seleucid Military

Seleucid rulers

Notes

See also

External links

The partition of Alexander's empire (323-281 BC)

Alexander had conquered the Achaemenid Empire within a short time-frame and died young, leaving an expansive empire of partly Hellenized culture without an adult heir. The empire was put under the authority of a regent in the person of Perdiccas in 323 BC, and the territories were divided between Alexander's generals, who thereby became satraps, at the Partition of Babylon in 323 BC.

The rise of Seleucus

Alexander's generals (the Diadochi) jostled for supremacy over parts of his empire, and Ptolemy, one of his generals and satrap of Egypt, was the first to challenge the new rule, leading to the demise of Perdiccas. His revolt led to a new partition of the empire with the Partition of Triparadisus in 320 BC. Seleucus, who had been "Commander-in-Chief of the camp" under Perdiccas since 323 BC but helped to assassinate the latter, received Babylonia, and from that point continued to expand his dominions ruthlessly. Seleucus established himself in Babylon in 312 BC, used as the foundation date of the Seleucid Empire. He ruled over not only Babylonia, but the entire enormous eastern part of Alexander's empire:

Seleucus went as far as India, where he reached an agreement with Chandragupta Maurya, in which he exchanged his eastern territories for a considerable force of 500 war elephants, which were to play a decisive role at Ipsus:

Battle of Ipsus (301 BC)

Following his and Lysimachus' victory over Antigonus Monophthalmus at the Battle of Ipsus in 301 BC, Seleucus took control over eastern Anatolia and northern Syria. In the latter area he founded a new capital at Antioch on the Orontes, a city he named after his father. An alternative capital was established at Seleucia on the Tigris, north of Babylon. Seleucus' empire reached its greatest extent following his defeat of his erstwhile ally, Lysimachus, at Corupedion in 281 BC. Seleucus expanded his control to encompass western Anatolia. He hoped further to take control of Lysimachus' lands in Europe - primarily Thrace and even Macedonia itself, but was assassinated by Ptolemy Ceraunus on landing in Europe. His son and successor, Antiochus I Soter, proved unable to pick up where his father had left off in conquering the European portions of Alexander's empire, but was left, nevertheless, with an enormous realm consisting of nearly all of the Asian portions of the Empire. His competitors were Antigonus II Gonatas in Macedonia and Ptolemy II Philadelphus in Egypt.

Cultural exchanges

The Seleucid empire's geographic span, from the Aegean Sea to Afghanistan, brought together a multitude of races: Greeks, Persians, Medes, Jews, Indians, to mention only some. Its rulers were in the position of having a governing interest to implement a policy of racial unity initiated by Alexander. By 313 BC, Hellenic ideas had begun their almost 250-year expansion into the Near East, Middle East, and Central Asian cultures. It was the empire's governmental framework to rule by establishing hundreds of cities for trade and occupational purposes. Many of the existing cities began — or were compelled by force — to adopt Hellenized philosophic thought, religious sentiments, and politics. Synthesizing Hellenic and indigenous cultural, religious, and philosophical ideas met with varying degrees of success — resulting in times of simultaneous peace and rebellion in various parts of the empire.

An overextended domain

Nevertheless, even before Seleucus' death, the vast eastern domains of the Seleucids were proving difficult to assert control over. Seleucus invaded India (modern Punjab Pakistan) in 304 BC, confronting Chandragupta Maurya (Sandrokottos), founder of the Maurya empire. It is said that Chandragupta fielded an army of 100,000 men and 9,000 war elephants. The two monarchs ultimately sealed a treaty, by which Seleucus ceded territories from the Indus to present-day Afghanistan. In exchange Chandragupta gave him no less than 500 elephants, an addition to his army that was to play a prominent part in his victory at Ipsus. The peace was complemented by a "marriage alliance" (''Epigamia'' in ancient sources), implying either a dynastic alliance (in which a Seleucid princess may have been betrothed to the Maurya dynasty) or the recognition of marriage between Greeks and Indians.
Seleucus also sent an ambassador named Megasthenes to Chandragupta's court, who repeatedly visited Pataliputra (modern Patna in Bihar state), capital of Chandragupta. Megasthenes wrote detailed descriptions of India and Chandragupta's reign, which have been partly preserved to us through Diodorus Siculus. He also later sent Deimakos to the court of Chandragupta's son, Bindusara.
Other territories lost before Seleucus' death were Gedrosia in the south-east of the Iranian plateau, and, to the north of this, Arachosia on the west bank of the Indus River.
Antiochus I (reigned 281-261 BC) and his son and successor Antiochus II Theos (reigned 261-246 BC) were faced with challenges in the west, including repeated wars with Ptolemy II and a Celtic invasion of Asia Minor — distracting attention from holding the eastern portions of the Empire together. Towards the end of Antiochus II's reign, various provinces simultaneously asserted their independence, such as Bactria under Diodotus, Parthia under Arsaces, and Cappadocia under Ariarathes III.

Greco-Bactrian secession (C. 245 BC)

Diodotus, governor for the Bactrian territory, asserted independence in around 245 BC, although the exact date is far from certain, to form the Greco-Bactrian kingdom. This kingdom was characterized by a rich Hellenistic culture, and was to continue its domination of Bactria until around 125 BC, when it was overrun by the invasion of northern nomads. One of the Greco-Bactrian kings, Demetrius I of Bactria, invaded India around 180 BC to form the Greco-Indian kingdom, lasting until around AD 20.

Parthian secession (C. 245 BC)

The Seleucid satrap of Parthia, named Andragoras, first claimed independence, in a parallel to the secession of his Bactrian neighbour. Soon after however, a Parthian tribal chief called Arsaces took over the Parthian territory around 238 BC to form the Arsacid Dynasty — the starting point of the powerful Parthian Empire.

Eclipse and revival

By the time Antiochus II's son Seleucus II Callinicus came to the throne around 246 BC, the Seleucids seemed to be at a low ebb indeed. Seleucus II was soon dramatically defeated in the Third Syrian War against Ptolemy III of Egypt and then had to fight a civil war against his own brother Antiochus Hierax. Taking advantage of this distraction, Bactria and Parthia seceded from the empire. In Asia Minor too, the Seleucid dynasty seemed to be losing control — Gauls had fully established themselves in Galatia, semi-independent semi-Hellenized kingdoms had sprung up in Bithynia, Pontus, and Cappadocia, and the city of Pergamum in the west was asserting its independence under the Attalid Dynasty.

But a revival would begin when Seleucus II's younger son, Antiochus III the Great, took the throne in 223 BC. Although initially unsuccessful in the Fourth Syrian War against Egypt, which led to an embarrassing defeat at the Battle of Raphia (217 BC), Antiochus would prove himself to be the greatest of the Seleucid rulers after Seleucus I himself. Following his defeat at Raphia, he spent the next ten years on his ''Anabasis'' through the eastern parts of his domain — restoring rebellious vassals like Parthia and Greco-Bactria to at least nominal obedience, and even emulating Alexander with an expedition into India where he met with king Sophagasenus.
When he returned to the west in 205 BC, Antiochus found that with the death of Ptolemy IV, the situation now looked propitious for another western campaign.
Antiochus and Philip V of Macedon then made a compact to divide the Ptolemaic possessions outside of Egypt, and in the Fifth Syrian War, the Seleucids ousted Ptolemy V from control of Coele-Syria. The Battle of Panium (198 BC) definitively transferred these holdings from the Ptolemies to the Seleucids. Antiochus appeared, at the least, to have restored the Seleucid Kingdom to glory.

The power of Rome and renewed disintegration

But Antiochus' glory was not to last for long. Following his erstwhile ally Philip's defeat at the hands of Rome in 197 BC, Antiochus now saw the opportunity for expansion into Greece. Encouraged by the exiled Carthaginian general Hannibal, and making an alliance with the disgruntled Aetolian League, Antiochus invaded Greece. Unfortunately, this decision led to his downfall: he was defeated by the Romans at the Battle of Thermopylae (191 BC) and Magnesia (190 BC), and was forced to make peace with the Romans by the embarrassing Treaty of Apamea (188 BC) — which forced him to abandon all European territories, ceded all of Asia Minor north of the Taurus Mountains to Pergamum, and set a large indemnity to be paid. Antiochus died in 187 BC on another expedition to the east, where he sought to extract money to pay the indemnity.

The reign of his son and successor Seleucus IV Philopator (187-175 BC) was largely spent in attempts to pay the large indemnity, and Seleucus was ultimately assassinated by his minister Heliodorus. Seleucus' younger brother, Antiochus IV Epiphanes, now seized the throne. He attempted to restore Seleucid prestige with a successful war against Egypt; but despite driving the Egyptian army back to Alexandria itself, he was forced to withdraw by the Roman envoy Gaius Popillius Laenas, who famously drew a circle in the sand around the king and told him he had to decide whether or not to withdraw from Egypt before leaving the circle. Antiochus chose to withdraw.
The latter part of his reign saw the further disintegration of the Empire. The Eastern areas remained nearly uncontrollable, as Parthians began to take over the Persian lands; and Antiochus' aggressive Hellenizing (or de-Judaizing) activities led to armed rebellion in Judaea — the Maccabee revolt (see the story of Chanukah, Shabbat 21b, Babylonian Talmud). Efforts to deal with both the Parthians and the Jews proved fruitless, and Antiochus himself died during an expedition against the Parthians in 164 BC.

Civil war and further decay

After the death of Antiochus IV Epiphanes, the Seleucid Empire became increasingly unstable. Frequent civil wars made central authority tenuous at best. Epiphanes' young son, Antiochus V Eupator, was first overthrown by Seleucus IV's son, Demetrius I Soter in 161 BC. Demetrius I attempted to restore Seleucid power in Judea particularly, but was overthrown in 150 BC by Alexander Balas — an impostor who (with Egyptian backing) claimed to be the son of Epiphanes. Alexander Balas reigned until 145 BC, when he was overthrown by Demetrius I's son, Demetrius II Nicator. Demetrius II proved unable to control the whole of the kingdom, however. While he ruled Babylonia and eastern Syria from Damascus, the remnants of Balas' supporters — first supporting Balas' son Antiochus VI, then the usurping general Diodotus Tryphon — held out in Antioch.
Meanwhile, the decay of the Empire's territorial possessions continued apace. By 143 BC, the Jews in form of the Maccabees had fully established their independence. Parthian expansion continued as well. In 139 BC, Demetrius II was defeated in battle by the Parthians and was captured. By this time, the entire Iranian Plateau had been lost to Parthian control. Demetrius Nicator's brother, Antiochus VII, was ultimately able to restore a fleeting unity and vigour to the Seleucid domains, but he too proved unequal to the Parthian threat: he was killed in battle with the Parthians in 129 BC, leading to the final collapse of the Seleucid hold on Babylonia. After the death of Antiochus VII, all effective Seleucid rule collapsed, as multiple claimants contested control of what was left of the Seleucid realm in almost unending civil war.

Collapse of the Seleucid Empire

By 100 BC, the once formidable Seleucid Empire encompassed little more than Antioch and some Syrian cities. Despite the clear collapse of their power, and the decline of their kingdom around them, nobles continued to play kingmakers on a regular basis, with occasional intervention from Ptolemaic Egypt and other outside powers. The Seleucids existed solely because no other nation wished to absorb them — seeing as they constituted a useful buffer between their other neighbours. In the wars in Anatolia between Mithridates VI of Pontus and Sulla of Rome, the Seleucids were largely left alone by both major combatants.
Mithridates' ambitious son-in-law, Tigranes the Great, king of Armenia, however, saw opportunity for expansion in the constant civil strife to the south. In 83 BC, at the invitation of one of the factions in the interminable civil wars, he invaded Syria, and soon established himself as ruler of Syria, putting Seleucid rule virtually at an end.
Seleucid rule was not entirely over, however. Following the Roman general Lucullus' defeat of both Mithridates and Tigranes in 69 BC, a rump Seleucid kingdom was restored under Antiochus XIII. Even now, civil wars could not be prevented, as another Seleucid, Philip II, contested rule with Antiochus. After the Roman conquest of Pontus, the Romans became increasingly alarmed at the constant source of instability in Syria under the Seleucids. Once Mithridates was defeated by Pompey in 63 BC, Pompey set about the task of remaking the Hellenistic East, by creating new client kingdoms and establishing provinces. While client nations like Armenia and Judea were allowed to continue some degree of autonomy under local kings, Pompey saw the Seleucids as too troublesome to continue; and doing away with both rival Seleucid princes, he made Syria into a Roman province.

Seleucid Military

Like with many of the Hellenistic states that formed after the death of Alexander the Great, the Seleucid armies were based on the Macedonian model and its troops were of Greco-Macedonian origin primarily. Since the Seleucid realm covered much of the eastern portions of the former Persian Empire, its kings had to rely on Eastern people to man its army. They relied troops that used the Macedonian phalanx, archers from the Eastern peoples and cavalry. Also, the Seleucids had a supply of Indian war elephants which was used to cause fear amongst their enemies. Like the Ptolemies with their wealth, the Seleucid kings had managed to recruit all kinds of people as mercenaries from the Indians living on the Indus to the people of Crete and Galatia. With their wars against Rome, the Seleucids attempted to create units of troops that copied the Roman legions. By 63 BC, the Seleucid Empire along with its army had disbanded. Many of the heavy cavalry was rumored to join the Roman armies in Asia.

Seleucid rulers

★ Seleucus I Nicator (Satrap 311–305 BC, King 305 BC–281 BC)

★ Antiochus I Soter (co-ruler from 291, ruled 281–261 BC)

★ Antiochus II Theos (261–246 BC)

★ Seleucus II Callinicus (246–225 BC)

★ Seleucus III Ceraunus (or Soter) (225–223 BC)

★ Antiochus III the Great (223–187 BC)

★ Seleucus IV Philopator (187–175 BC)

★ Antiochus IV Epiphanes (175–164 BC)

★ Antiochus V Eupator (164–162 BC)

★ Demetrius I Soter (161–150 BC)

★ Alexander I Balas (150–145 BC)

★ Demetrius II Nicator (first reign, 145–138 BC)

★ Antiochus VI Dionysus (or Epiphanes) (145–140 BC?)

★ Diodotus Tryphon (140?–138 BC)

★ Antiochus VII Sidetes (or Euergetes) (138–129 BC)

★ Demetrius II Nicator (second reign, 129–126 BC)

★ Alexander II Zabinas (129–123 BC)

★ Cleopatra Thea (126–123 BC)

★ Seleucus V Philometor (126/125 BC)

★ Antiochus VIII Grypus (125–96 BC)

★ Antiochus IX Cyzicenus (114–96 BC)

★ Seleucus VI Epiphanes Nicator (96–95 BC)

★ Antiochus X Eusebes Philopator (95–92 BC or 83 BC)

★ Demetrius III Eucaerus (or Philopator) (95–87 BC)

★ Antiochus XI Epiphanes Philadelphus (95–92 BC)

★ Philip I Philadelphus (95–84/83 BC)

★ Antiochus XII Dionysus (87–84 BC)

★ (Tigranes I of Armenia) (83–69 BC)

★ Seleucus VII Kybiosaktes or Philometor (70s BC–60s BC?)

★ Antiochus XIII Asiaticus (69–64 BC)

★ Philip II Philoromaeus (65–63 BC)

Notes

See also

★ Hellenistic Greece

★ Parthian Empire

★ Greco-Bactrian Kingdom

★ Indo-Greek Kingdom

★ Hasmonean Dynasty

External links

★ Livius, The Seleucid Empire by Jona Lendering

★ Seleukids.org: An Online Sourcebook for the History, Numismatics, Epigraphy, Art and Archaeology of the Seleukid Empire, by Oliver D. Hoover

★ Genealogy of the Seleucids