Seleucus I Nicator(357 av. J.-C. — 280 av. J.-C.)

Seleucus I

royaume de Macédoine, royaume séleucide

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PoliticsMilitaryChef militaireBefore ChristHellenistic period, in the aftermath of the Wars of the Diadochi that followed the death of Alexander the Great (late 4th – early 3rd century BC)

A Macedonian general under Alexander the Great, Seleucus became one of the Diadochi after his death and founded the Seleucid dynasty. He built the largest of the Hellenistic kingdoms, stretching from Anatolia to the Indus.

Frequently asked questions

Seleucus I Nicator (357-280 BC) was a Macedonian general of Alexander the Great who, after the latter's death, became one of the Diadochi — the successors who divided up the empire among themselves. The key thing to remember is that he founded the Seleucid dynasty and built the largest Hellenistic kingdom, stretching from Anatolia to the Indus. His historical importance lies in the fact that he lastingly established Greek culture in the East, founded major cities such as Antioch and Seleucia on the Tigris, and created a calendar — the Seleucid era — that served as a reference throughout the Near East for centuries.

Key Facts

  • An officer of Alexander the Great, he commanded the hypaspists (an elite corps) during the Asian campaign (327 BC)
  • Became satrap of Babylon in 321 BC after the agreement of Triparadisus
  • Founded the Seleucid dynasty in 312/311 BC (the starting point of the Seleucid era)
  • Around 305-303 BC, treaty with Chandragupta Maurya: the eastern satrapies were ceded in exchange for 500 war elephants
  • Victor of the Battle of Ipsus (301 BC); assassinated in 281 BC after his victory at Corupedium

Works & Achievements

Founding of the Seleucid dynasty (305 BC)

By taking the title of king, Seleucus established a dynasty that would rule the Hellenistic East for more than two centuries.

Reconquest of Babylon and the Seleucid era (312 BC)

His recapture of Babylon founded the first continuous calendar in history, used for centuries across the Near East.

Founding of Antioch on the Orontes (around 300 BC)

A prestigious capital that would become one of the greatest cities of antiquity and a center of Greek culture.

Founding of Seleucia on the Tigris (around 305 BC)

A great Mesopotamian metropolis meant to spread Hellenism and to supplant ancient Babylon.

Treaty with Chandragupta Maurya (around 303 BC)

A diplomatic agreement fixing the eastern border and providing 500 war elephants, sealed by a marriage alliance.

Victory at Ipsus (301 BC)

A military triumph thanks to his elephants that made Seleucus the most powerful of the Diadochi and expanded his kingdom as far as the Mediterranean.

Building the largest Hellenistic kingdom (281 BC)

After Corupedium, his empire stretched from Anatolia to the Indus, the largest of all those born from Alexander's legacy.

Anecdotes

After Alexander's death, Seleucus began modestly: he had received only a distant satrapy, Babylonia. Driven out by his rival Antigonus the One-Eyed, he fled to Egypt, then returned to retake Babylon in 312 BC — a return so decisive that the Seleucids made it the starting point of their calendar, the “Seleucid era.”

Around 305 BC, Seleucus carried the war all the way to the gates of India, facing the emperor Chandragupta Maurya. Rather than exhaust himself, he concluded a treaty: he ceded the eastern provinces and received in exchange 500 war elephants. These beasts made the difference at the Battle of Ipsus.

At Ipsus in 301 BC, his 500 elephants formed a living wall that cut off the enemy cavalry and sealed Antigonus's defeat. This victory made Seleucus the master of an immense empire, stretching from Asia Minor to the borders of India.

Seleucus was given the surname “Nicator,” meaning “the Victor.” Yet his final conquest proved fatal: in 281 BC, master of nearly all of Alexander's empire, he was assassinated in Europe by Ptolemy Keraunos, the son of his former ally, whom he had nonetheless welcomed at his court.

For political reasons, Seleucus gave up his own wife Stratonice to his son Antiochus. According to a famous story handed down by the ancients, the young prince was secretly dying of love for his stepmother, and a perceptive physician guessed the ailment by noticing his pulse racing at the sight of the young woman.

Primary Sources

Appian, Roman History — The Syrian Wars (2nd century AD)
Seleucus founded cities throughout the whole extent of his empire: sixteen Antiochs named after his father, five Laodiceas named after his mother, nine named after himself, and four named after his wives.
Diodorus Siculus, Historical Library, Book XIX (1st century BC)
Seleucus, having retaken Babylon with a small force, was welcomed warmly by the inhabitants, for he had shown himself generous during his satrapy; it is from this moment that the Babylonians count the years of his reign.
Plutarch, Life of Demetrius (early 2nd century AD)
Seleucus gave his wife Stratonice to his son Antiochus, who was wasting away from a love he concealed; the physician Erasistratus discovered the cause of the illness by observing the young man's agitation.
Strabo, Geography, Book XV (1st century AD / early 1st century)
Seleucus Nicator concluded an agreement with Sandrocottus (Chandragupta), ceding territories to him in exchange for five hundred elephants, and sealed the friendship with a marriage.

Key Places

Babylon

Seleucus's initial capital, which he reconquered in 312 BC to found his kingdom. The starting point of the Seleucid era.

Ipsus (Phrygia)

Plain in Anatolia where, in 301 BC, the great battle took place that sealed the fall of Antigonus and the rise of Seleucus's power.

Antioch on the Orontes

City founded by Seleucus around 300 BC in honor of his father Antiochus. It became the great capital of the Seleucid empire.

Seleucia on the Tigris

Metropolis founded by Seleucus on the Tigris to rival Babylon. It became one of the greatest cities of the Hellenistic East.

Corupedium (Lydia)

Battlefield in Asia Minor where Seleucus defeated and killed Lysimachus in 281 BC, becoming master of nearly all of Alexander's empire.

Lysimachia (Thrace)

Region of Europe where Seleucus was assassinated by Ptolemy Keraunos in 281 BC, shortly after his greatest victory.

See also