Euthydemus I (Greek: Εὐθύδημος, Euthydemos) c. 260 BCE – 200/195 BCE) was a Greco-Bactrian King and founder of the Euthydemid dynasty. He is thought to have originally been a satrap of Sogdia, who usurped power from Diodotus II in 224 BCE. Literary sources, notably Polybius, record how he and his son Demetrius resisted an invasion by the Seleucid King Antiochus III from 209 to 206 BCE. Euthydemus expanded the Bactrian territory into Sogdia, constructed several fortresses, including the Derbent Wall in the Iron Gate and issued a very substantial coinage.
BIOGRAPHY
Euthydemus was an Ionian-Greek from one of the Magnesias in Ionia, though it is uncertain from which one (Magnesia on the Maeander or Magnesia ad Sipylum), and was the father of Demetrius I, according to Strabo and Polybius.William Woodthorpe Tarn proposed that Euthydemus was the son of a Greek general called Antimachus or Apollodotus, born c. 295 BCE, whom he considered to be the son of Sophytes, and that he married a sister of the Greco-Bactrian king Diodotus II.
WAR WITH THE SELEUCID EMPIRE
Little is known of his reign until 208 BCE when he was attacked by Antiochus III the Great, whom he tried in vain to resist on the shores of the river Arius (Battle of the Arius), the modern Herirud. Although he commanded 10,000 horsemen, Euthydemus initially lost a battle on the Arius and had to retreat. He then successfully resisted a three-year siege in the fortified city of Bactra, before Antiochus finally decided to recognize the new ruler, and to offer one of his daughters to Euthydemus's son Demetrius around 206 BCE. As part of the peace treaty, Antiochus was given Indian war elephants by Euthydemus.
For Euthydemus himself was a native of Magnesia, and he now, in defending himself to Teleas, said that Antiochus was not justified in attempting to deprive him of his kingdom, as he himself had never revolted against the king, but after others had revolted he had possessed himself of the throne of Bactria by destroying their descendants. (...) finally Euthydemus sent off his son Demetrius to ratify the agreement. Antiochus, on receiving the young man and judging him from his appearance, conversation, and dignity of bearing to be worthy of royal rank, in the first place promised to give him one of his daughters in marriage and next gave permission to his father to style himself king
— Polybius, 11.34, 2
Polybius also relates that Euthydemus negotiated peace with Antiochus III by suggesting that he deserved credit for overthrowing the descendants of the original rebel Diodotus, and that he was protecting Central Asia from nomadic invasions thanks to his defensive efforts.
The war lasted three years and after the Seleucid army left, the Kingdom seems to have recovered quickly from the assault. The death of Euthydemus has been roughly estimated to 200 BCE or perhaps 195 BCE. He was succeeded by Demetrius, who went on to invade northwestern regions of South Asia.
SOURCE : Activities on the Central Asian Steppe
Polybius claims that Euthydemus justified his kingship during his peace negotiations with Antiochus III in 206 BC by reference to the threat of attack by nomads on the Central Asian steppe:
"...[he said that] if [Antiochus] did not yield to this demand, neither of them would be safe: seeing that great hoards of Nomads were close at hand, who were a danger to both; and that if they admitted them into the country, it would certainly be utterly barbarised." (Polybius, 11.34).
Archaeological evidence from coin finds shows that Euthydemus' reign saw extensive activity at fortresses in northwestern Bactria (the modern Surkhan Darya region of Uzbekistan), especially in the Gissar and Köýtendag mountains. The Seleucid fortress at Uzundara was expanded and large numbers of Euthydemus' bronze coins have been found there, as was as hundreds of arrowheads and other remains indicating a violent assault.[8] Coin finds also seem to indicate that Euthydemus was responsible for the first construction of the Derbent Wall, otherwise known as the "Iron Gate", a 1.6-1.7 km long stone wall with towers and a central fortress guarding a key pass.[9] Landislav Stančo tentatively links the archaeological evidence with the nomad threat.[10] However, Stančo also notes that Derbent wall seems to have been designed not to defend against an attack from Sogdia to the northwest, but from Bactria to the southeast. Hundreds of arrowheads also seem to indicate an attack on the wall from the southeast. Stančo proposes that Euthydemus was originally based in Sogdia and built the fortifications to protect himself from Bactria, before seizing control of the latter.[11] Lucas Christopoulos goes further, proposing that he controlled a large area going from Sogdiana to Gansu and the Tarim basin walled cities together with enrolled Hellenized Saka horsemen even before he ascended the throne of Bactria in 250-230 BC.
In an inscription found in the Kuliab area of Tajikistan, northeastern Greco-Bactria, and dated to 200-195 BC,[13] a Greek by the name of Heliodotos, dedicating an altar to Hestia, mentions Euthydemus as the greatest of all kings, and his son Demetrius I.
This fragrant altar to you, Hestia, most honoured among the gods, Heliodotus established in the grove of Zeus with its fair trees, furnishing it with libations and burnt-offerings, so that you may graciously preserve free from care, together with divine good fortune, Euthydemus, greatest of all kings and his outstanding son Demetrius, renowned for fine victories
This is a further indication, alongside the passages from Polybius, that Euthydemus had made his son Demetrius a junior partner in his rule during his lifetime. The reference to Demetrius as a "glorious conqueror" might refer to a specific victory, in the conflict with Antiochus III[17] or in India, or look forward to future victories
Coinage
Euthydemus minted coins in gold, silver and bronze at two mints, known as 'Mint A' and 'Mint B'. He produced significantly more coins than any of his successors and was the last Greco-Bactrian coinage to include gold denominations until the time of Eucratides I (ca. 170-145 BC). Euthydemus' gold and silver issues are all minted on the Attic weight standard with a tetradrachm of ca. 16.13 g and all have the same basic design. On the obverse, his face is depicted in profile, clean-shaven, with unruly hair, and a diadem - this iconography is typical of Hellenistic kings, ultimately deriving from depictions of Alexander the Great. The reverse shows Heracles, naked, seated on a rock, resting his club on a neighbouring rock or on his knee, with a legend reading ΒΑΣΙΛΕΩΣ ΕΥΘΥΔΗΜΟΥ ('of King Euthydemos').[18] Heracles was apparently a popular deity in Bactria, associated with Alexander the Great, but this reverse type is very similar to coins minted by the Seleucids in western Asia Minor, near Euthydemus' home city of Magnesia.[17][19] Heracles continues to appear on the coinage of Euthydemus' immediate successors, Demetrius and Euthydemus II.
Posthumous coinage
Euthydemus is also featured on the 'pedigree' coinage produced by the later kings Agathocles and Antimachus I. On this coinage he bears the royal epithet, Theos ('God'); it is unclear whether he used this title in life or if it was assigned to him by Agathocles.[44] His coins were imitated by the nomadic tribes of Central Asia for decades after his death; these imitations are called "barbaric" because of their crude style. Lyonnet proposes that these coins were produced by refugees fleeing the destruction of the Greco-Bactrian kingdom by the Yuezhi in the mid-second century BC
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