Seleukos I Nikator
Tetradrachm (Silver, 26 mm, 17.08 g, 8 h)
Susa, circa 296/5-281.
Laureate head of Zeus to right. Rev. BAΣIΛEΩΣ / ΣEΛEΥKOΥ Athena, brandishing spear overhead in her right hand and holding shield in her left, standing right in quadriga of elephants moving to right; above to right, spearhead; before elephants, monogram of MΩ. SC 177.2.

The Seleukid Kingdom was founded by Seleukos I Nikator and continued by his son Antiochos I Soter. It was the largest of the post-Alexander kingdoms, though over time they lost more and more territory to rebellious client kingdoms and invasions, until they were eventually defeated entirely and swallowed by Rome.

Seleukid Empire, Antiochos I Soter AR Tetradrachm
Seleukeia on the Tigris, 281-261 BC
Diademed head to right / Apollo Delphios seated to left on omphalos, testing arrow and resting left hand on grounded bow; ΒΑΣΙΛΕΩΣ to right, ΑΝΤΙΟΧΟΥ to left, monogram to outer left and right.
SC 379.5a; HGC 9, 128g. 16.80g, 29mm, 3h.
321 BCE

Orontes III is believed to found the Kingdom of Sophene, though it struggles for independence from the Seleukids.

312 BCE

Seleukos I Nikator gains control of Babylon, founding the Seleukid Empire and beginning Babylon’s decline as a center of power as Seleukos establishes Seleukeia on the Tigris.

306 BCE

Seleukos I Nikator proclaims himself king along with the other Diadochi, thus founding the Seleukid Kingdom.

301 BCE

Following the victory in the Battle of Ipsos, Cilicia comes under Seleukid control with Seleukos I Nikator. This included Aigai.Tarsos, Soloi, Issos, and Mallos.

301 BCE

Ariarathes II kills the Macedonian satrap and continues the Ariarathid dynasty, but is forced to accept Seleukid suzerainty.

301 BCE

Tralleis comes under Seleukid control.

300 BCE
May

Antioch founded by Seleukos I Nikator of the Seleukid dynasty.

286 BCE

Birth of Antiochos II Theos to Stratonike and Antiochos I Soter.

281 BCE

Lysimachos defeated at the Battle of Coropedion. Adramytteion, Ainos, and Abydos come under control of the Seleukid Empire. Ephesos returns to its original name.

281 BCE
September

Seleukos I Nikator is murdered by Ptolemy Keraunos while praying. Antiochos I Soter becomes king of the Seleukid Empire.

278 BCE

The Gauls invade the Seleukid Empire under Antiochos I Soter.

261 BCE
June 2

Death of Antiochos I Soter. Antiochos II Theos becomes king of the Seleukid Empire.

260 BCE

Approximate foundation of Laodikeia ad Lycon by Antiochos II in honor of his wife, Laodike.

259 BCE

Arados removes its royalty and becomes a free city in the Seleukid Empire.

259 BCE-
258 BCE

Antiochos II Theos of the Seleukid Empire fights the Second Syrian War against Ptolemy II Philadelphos of Egypt. Arados takes the side of Antiochos.

259 BCE

Antiochos II signs an agreement with Antigonos II against Ptolemy II and the Second Syrian War begins.

258 BCE

Miletos is taken by Antiochos II Theos and its tyrant Timarchos is killed. The rebellion with Ptolemy Epigonos against Ptolemy II Philadelphos ends.

255 BCE

The Second Syrian War ends. Ptolemy II cedes land to Antiiochos II and Antigonos II remains in mastery of Greece. Antiochos II takes control over Ephesos, Samos, and Miletos.

255 BCE

The navy of Ptolemy II Philadelphos is defeated by Antiochos II Theos at Ephesos.

252 BCE

Antiochos II Theos marries Berenike, the daughter of Ptolemy II Philadelphos.

250 BCE

Diodotos I, the Seleukid satrap of Baktria, declares independence from the Seleukid Empire, establishing the Greco-Baktrian Kingdom.

246 BCE

Antiochos III besieges Kypsela until the locals join his army.

246 BCE
July

Antiochos II Theos dies, potentially by poisoning. Seleukos II Kallinikos becomes King of the Seleukid Empire.

245 BCE

Andragoras declares his independence from the Seleukid King Seleukos II.

241 BCE

The Ptolemaic Kingdom takes vast territories as a result of the Third Syrian War against the Seleukids. Tyre, Byblos, Sidon, Mallos, Soloi, Tarsos, and Aigai come under Ptolemaic control.

240 BCE

Antioch becomes the capital of the Seleukid Empire.

239 BCE

Arsames I supports Antiochos Hierax over his brother Seleukos II Kallinikos for the Seleukid throne.

225 BCE
December

Seleukos II Kallinikos dies after falling from his horse. Seleukos III Keraunos becomes king of the Seleukid Empire.

223 BCE
June

Seleukos III Keraunos is assassinated by members of his own army. Antiochos III the Great becomes king of the Seleukid Empire.

220 BCE

Achaios declares himself king of the region including Laodikeia ad Lykon.

219 BCE

Antiochos III recaptures Seleukeia Pieria.

215 BCE

Antiochos III besieges Sardis but fails to take its akropolis.

213 BCE

Achaios, who ruled over the territory including Laodikeia ad Lykon, is defeated by Antiochos III.

212 BCE

Antiochos III transports 2000 Jewish families from Babylon to Laodikeia ad Lykon.

212 BCE

Antiochos III defeats Xerxes of Sophene, then marries him to his sister, who assassinates Xerxes. Zariadres is installed in Sophene.

208 BCE

Antiochos III of the Seleukid Empire campaigns in Baktria but eventually agrees to a peace with Euthydemos I, the Greco-Baktrian king, recognizing the kingdom’s independence.

200 BCE

Byblos, Arados, Tyre, and Sidon fall under Seleukid control after the Battle of Panium, as the Seleukids gain dominance in the region.

197 BCE

Nagidos and the rest of Cilicia come under Seleukid control.

197 BCE

Lycia, including Phaselis, is overrun by Antiochos III.

196 BCE

Abydos, Madytos, and Ephesos seized by Antiochos III of the Seleukid Empire.

196 BCE

Antiochos III rebuilds Lysimachia.

196 BCE

Sestos surrenders to Antiochos III.

192 BCE

Antiochos III, desiring to meet Rome in battle, is detained by the cities of Alexandria Troas, Smyrna, and Lampsakos, which refused entreaties.

192 BCE

Chalkis used as a base by Antiochos III for invading Greece.

192 BCE

Metropolis and Kierion are taken by Antiochos III in the Roman-Seleukid War.

191 BCE

Antiochos III takes Atrax, by then a Roman stronghold, and Medeion.

191 BCE

Antiochos III refortifies Sestos in preparation for a Roman attack.

190 BCE

Antiochos III is defeated by Scipio Asiaticus at the Battle of Magnesia. Through treaty, Ephesos comes under the Attalids. Alabanda comes under Roman control.

190 BCE

Antiochos III orders the inhabitants of Lysimachia to abandon their city.

190 BCE

Death of Autophradates I of Persis, who demonstrated increasing independence from the Seleukid Empire. Ardaxšir II becomes king.

187 BCE

Antiochos III the Great is killed while pillaging at temple of Bel at Elymais. Seleukos IV Philopator rules the Seleukid Kingdom.

175 BCE

Mallos and Tarsos ally against Antiochos IV Epiphanes.

175 BCE
September 3

Seleukos IV Philopator is killed by a bureaucratic Helidoros. Antiochos becomes king of the Seleukid Kingdom.

170 BCE

Death of Antiochos of the Seleukid Kingdom. Antiochos IV becomes king.

167 BCE

During the Maccabean Revolt against the Seleukids, tensions increase between the Jewish population and Idumeans, who are caught between the Seleukids and the Hasmoneans.

166 BCE

Death of Mattathias, who started the Maccabean Revolt of Judea against the Seleukid Empire. Judas Maccabee continues the revolt.

164 BCE
November

Antiochos IV dies at Isfahan while on the way home from an unsuccessful campaign. Antiochos V Eupator becomes king of the Seleukid Kingdom.

161 BCE

Antiochos V Eupator is put to death. Demetrios I Soter becomes king of the Seleukid Kingdom.

152 BCE

Alexander Balas gives Tyre the right to asylum.

150 BCE
June

Demetrios I is killed by Alexander Balas, who becomes the Seleukid king.

147 BCE

Susa breaks free from the Seleukid Empire.

145 BCE
August

Alexander Balas is defeated by Ptolemy VI and Demetrios II, who becomes the Seleukid king.

143 BCE

Jonathan is killed by Diodotos Tryphon. His brother Simon continues the Hasmonean Dynasty.

141 BCE

Hyspaosines declares independence from the Seleukids and founds the Characene Kingdom.

138 BCE

Diodotos Tryphon is either killed or commits suicide. Antiochos VII Euergetes takes the Seleukid throne.

138 BCE
July

Demetrios II Nikator is taken prisoner by the Parthians. Diodotos Tryphon becomes the Seleukid king.

129 BCE

Antiochos VII Euergetes is killed in the Battle of Ekbatana by Phraates II. Demetrios II Nikator retakes the Seleukid throne.

126 BCE

Demetrios II Nikator is defeated at the Battle of Damaskos by Alexander II Zabinas. He is then captured and killed on a ship near Tyre. Alexander II takes the Seleukid throne.

126 BCE

Tyre obtains its independence from the Seleukids.

123 BCE

Alexander II Zabinas is defeated and killed by Antiochos VIII, who takes the Seleukid throne.

96 BCE

Antiochos VIII Grypos is killed by his minister Heraklaion. His brother Antiochos IX becomes the Seleukid king.

96 BCE

Antiochos IX Kyzikos is killed by Seleukos VI, who becomes the Seleukid king.

94 BCE

Seleukos VI Ephiphanes, a Seleukid king, is killed during riots.