Parthia

Parthia (𓊪𓃭𓍘𓇋𓍯𓈉, P-rw-t-i-wꜣ), as one of the 24 subjects of the Achaemenid Empire, in the Egyptian Statue of Darius I.

As the region inhabited by Parthians, Parthia first appears as a political entity in Achaemenid lists of governorates ("satrapies") under their dominion. Prior to this, the people of the region seem to have been subjects of the Medes,[4] and 7th century BC Assyrian texts mention a country named Partakka or Partukka (though this "need not have coincided topographically with the later Parthia").[5]

A year after Cyrus the Great's defeat of the Median Astyages, Parthia became one of the first provinces to acknowledge Cyrus as their ruler, "and this allegiance secured Cyrus' eastern flanks and enabled him to conduct the first of his imperial campaigns – against Sardis."[6] According to Greek sources, following the seizure of the Achaemenid throne by Darius I, the Parthians united with the Median king Phraortes to revolt against him. Hystaspes, the Achaemenid governor of the province (said to be father of Darius I), managed to suppress the revolt, which seems to have occurred around 522–521 BC.

The first indigenous Iranian mention of Parthia is in the Behistun inscription of Darius I, where Parthia is listed (in the typical Iranian clockwise order) among the governorates in the vicinity of Drangiana.[7] The inscription dates to c. 520 BC. The center of the administration "may have been at [what would later be known as] Hecatompylus".[8] The Parthians also appear in Herodotus' list of peoples subject to the Achaemenids; the historiographer treats the Parthians, Chorasmians, Sogdians and Areioi as peoples of a single satrapy (the 16th), whose annual tribute to the king he states to be only 300 talents of silver. This "has rightly caused disquiet to modern scholars."[9]

At the Battle of Gaugamela in 331 BC between the forces of Darius III and those of Alexander the Great, one such Parthian unit was commanded by Phrataphernes, who was at the time Achaemenid governor of Parthia. Following the defeat of Darius III, Phrataphernes surrendered his governorate to Alexander when the Macedonian arrived there in the summer of 330 BC. Phrataphernes was reappointed governor by Alexander.

Following the death of Alexander, in the Partition of Babylon in 323 BC, Parthia became a Seleucid governorate under Nicanor. Phrataphernes, the former governor, became governor of Hyrcania. In 320 BC, at the Partition of Triparadisus, Parthia was reassigned to Philip, former governor of Sogdiana. A few years later, the province was invaded by Peithon, governor of Media Magna, who then attempted to make his brother Eudamus governor. Peithon and Eudamus were driven back, and Parthia remained a governorate in its own right.

In 316 BC, Stasander, a vassal of Seleucus I Nicator and governor of Bactria (and, it seems, also of Aria and Margiana) was appointed governor of Parthia. For the next 60 years, various Seleucids would be appointed governors of the province.

Coin of Andragoras, the last Seleucid satrap of Parthia. He proclaimed independence around 250 BC.

In 247 BC, following the death of Antiochus II, Ptolemy III seized control of the Seleucid capital at Antioch, and "so left the future of the Seleucid dynasty for a moment in question."[10] Taking advantage of the uncertain political situation, Andragoras, the Seleucid governor of Parthia, proclaimed his independence and began minting his own coins.

Meanwhile, "a man called Arsaces, of Scythian or Bactrian origin, [was] elected leader of the Parni",[11] an eastern-Iranian peoples from the Tajen/Tajend River valley, south-east of the Caspian Sea.[12] Following the secession of Parthia from the Seleucid Empire and the resultant loss of Seleucid military support, Andragoras had difficulty in maintaining his borders, and about 238 BC – under the command of "Arsaces and his brother Tiridates"[11][13] – the Parni invaded[14] Parthia and seized control of Astabene (Astawa), the northern region of that territory, the administrative capital of which was Kabuchan (Kuchan in the vulgate).

A short while later the Parni seized the rest of Parthia from Andragoras, killing him in the process. Although an initial punitive expedition by the Seleucids under Seleucus II was not successful, the Seleucids under Antiochus III recaptured Arsacid controlled territory in 209 BC from Arsaces' (or Tiridates') successor, Arsaces II. Arsaces II sued for peace and accepted vassal status,[13] and it was not until Arsaces II's grandson (or grand-nephew) Phraates I, that the Arsacids/Parni would again begin to assert their independence.[15]

Parthian horseman now on display at the Palazzo Madama, Turin.

Coin of Mithridates I (R. 171–138 BC). The reverse shows Heracles, and the inscription ΒΑΣΙΛΕΩΣ ΜΕΓΑΛΟΥ ΑΡΣΑΚΟΥ ΦΙΛΕΛΛΗΝΟΣ "Great King Arsaces, friend of Greeks".

Reproduction of a Parthian archer as depicted on Trajan's Column.

A sculpted head (broken off from a larger statue) of a Parthian soldier wearing a Hellenistic-style helmet, from the Parthian royal residence and necropolis of Nisa, 2nd century BC

From their base in Parthia, the Arsacid dynasts eventually extended their dominion to include most of Greater Iran. They also quickly established several eponymous branches on the thrones of Armenia, Iberia, and Caucasian Albania. Even though the Arsacids only sporadically had their capital in Parthia, their power base was there, among the Parthian feudal families, upon whose military and financial support the Arsacids depended. In exchange for this support, these families received large tracts of land among the earliest conquered territories adjacent to Parthia, which the Parthian nobility then ruled as provincial rulers. The largest of these city-states were Kuchan, Semnan, Gorgan, Merv, Zabol and Yazd.

From about 105 BC onwards, the power and influence of this handful of Parthian noble families was such that they frequently opposed the monarch, and would eventually be a "contributory factor in the downfall" of the dynasty.[16]

From about 130 BC onwards, Parthia suffered numerous incursions by various nomadic tribes, including the Sakas, the Yuezhi, and the Massagetae. Each time, the Arsacid dynasts responded personally, doing so even when there were more severe threats from Seleucids or Romans looming on the western borders of their empire (as was the case for Mithridates I). Defending the empire against the nomads cost Phraates II and Artabanus I their lives.[16]

The Roman Crassus attempted to conquer Parthia in 52 BC but was decisively defeated at the Battle of Carrhae. Caesar was planning another invasion when he was assassinated in 44 BC. A long series of Roman-Parthian wars followed.

Around 32 BC, civil war broke out when a certain Tiridates rebelled against Phraates IV, probably with the support of the nobility that Phraates had previously persecuted. The revolt was initially successful, but failed by 25 BC.[17] In 9/8, the Parthian nobility succeeded in putting their preferred king on the throne, but Vonones proved to have too tight a budgetary control, so he was usurped in favor of Artabanus II, who seems to have been a non-Arsacid Parthian nobleman. But when Artabanus attempted to consolidate his position (at which he was successful in most instances), he failed to do so in the regions where the Parthian provincial rulers held sway.[18]

By the 2nd century AD, the frequent wars with neighboring Rome and with the nomads, and the infighting among the Parthian nobility had weakened the Arsacids to a point where they could no longer defend their subjugated territories. The empire fractured as vassalaries increasingly claimed independence or were subjugated by others, and the Arsacids were themselves finally vanquished by the Persian Sassanids, a formerly minor vassal from southwestern Iran, in April 224.

Parthia was likely the first region conquered by Ardashir I after his victory over Artabanus IV, showing the importance of the province to the founder of the Sasanian dynasty.[1] Some of the Parthian nobility continued to resist Sasanian dominion for some time, but most switched their allegiance to the Sasanians very early. Several families that claimed descent from the Parthian noble families became a Sasanian institution known as the "Seven houses", five of which are "in all probability" not Parthian, but contrived genealogies "in order to emphasize the antiquity of their families."[19]

Parthia continued to hold importance throughout the 3rd century. In his Ka'be-ye Zardusht inscription Shapur I lists the province of Parthia in second place after Pars. The Abnun inscription describes the Roman invasion of 243/44 as an attack on Pars and Parthia. Considering the Romans never went further than Mesopotamia, "Pars and Parthia" may stand for the Sasanian Empire itself.[20] Parthia was also the second province chosen for settlement by Roman prisoners of war after the Battle of Edessa in 260.[1]