Cappadocia under Ariarathes IV had come into relations with Rome, first as a foe espousing the cause of Antiochus the Great, then as an ally against Perseus of Macedon.

The kings henceforward had throws in their lot with the Republic as against the Seleucids, to whom they had been from time to time tributary.

Ariarathes V marches with the Roman proconsul Publius Licinius Crassus Dives Mucianus against Aristonicus, a claimant to the throne of Pergamon, and their forces are annihilated in 130 BCE.

The imbroglio that follows his death will ultimately lead to interference by the rising power of Pontus and the intrigues and wars that end in the failure of the dynasty.

Antiochus, with Palestine secured, now devotes his attention to recovering the Seleucid domains in the east.

He assembles a powerful army, which once more includes men of Persis and Elymais.

The strength in numbers and the wealth of this army make an impression on contemporaries, who report that even the simple soldiers wear shoes cobbled with gold.

With enthusiastic support from the Hellenized cities, …

…Antiochus drives the Parthians from Mesopotamia and Babylonia and …

…invades Media, where, with the arrival of winter, he quarters his troops in several localities.

Parthian ruler Mithridates I had died in 138 BCE; his son and successor rules as Phraates II.

The Parthians, perhaps hopeful of stirring up civil war behind Antiochus, release his brother Demetrius, who has been their prisoner for a decade.

Roman consul Publius Licinius Crassus Dives Mucianus, who had become Pontifex Maximus in 132 BCE after the death of the exiled Pontifex Publius Cornelius Scipio Nasica Serapio, had in the following year been elected consul along with Lucius Valerius Flaccus, the flamen Martialis.

Mucianus, according to ancient historians, was a wealthy, cultivated man who spoke several varieties of Greek fluently.

He and his brother were supportive of political and economic reforms, and as such, staunch supporters of Tiberius Sempronius Gracchus (killed in 133 BCE), who was married to his wife's niece, another Claudia.

Crassus Mucianus later marries his younger daughter to Tiberius's younger brother Gaius.

Mucianus had forbidden his colleague to fight against Aristonicus and fined him for neglecting his sacred duties.

The people remitted the fine but wished Flaccus to submit to his religious superior.

Mucianus nevertheless has come east to fight Aristonicus; he is the first Pontifex Maximus to voluntarily leave Italy (whereas Scipio Nasica Serapio had been sent out of Italy by the Senate).

He meets with defeat in 130 and, while retreating, is overtaken by the enemy and stabbed to death; according to one source (Valerius Maximus), he deliberately refused to reveal his identity to avoid the humiliation of being captured alive.

Popular stories about the prophet Daniel—one concerning his exposure (to King Cyrus) of a huge idol falsely believed to consume huge quantities of food and drink; the other an account of Daniel’s poisoning of a dragon worshiped as a god and his subsequent scheduled punishment of death in the lions’ den (he miraculously survives, unmolested for six days)—are probably written about 130, and known as Bel and the Dragon, the name given to chapter 14 of the extended Book of Daniel, which exists only in Koine Greek in the Septuagint.

Excluded from the Hebrew/Aramaic text of Daniel, this chapter, along with chapter 13, is referred to as deuterocanonical, in that it is not universally accepted among Christians as belonging to the canonical works accepted as the Bible.

The text is viewed as canonical by Catholics but as apocryphal by Protestants and typically not found in modern Protestant Bibles, though it was in the original 1611 edition of the King James Version.

It is listed in Article VI of the Thirty-Nine Articles of the Church of England.

The traditional theory that Daniel was the original author of the Book of Daniel has been disputed by recent scholars.

Critics of Daniel view the Book of Daniel as a pseudepigraph dated around 165 BCE that concerns itself primarily with the Maccabean era and the reign of the Seleucid king Antiochus Epiphanes.

Those who share this view typically adhere to the Maccabean thesis when analyzing the Book of Daniel.

The stories of chapters 1-6 are considered to be a literary genre of legends that are older than the visions of chapters 7-12.

The visions in the latter half of Daniel are theorized to be written by an anonymous author in the Maccabean era, who assembles the legends with the visions as one book, in the second century BCE.

According to this view, it is not considered to be read as a prophecy of western political history or of an eschatological future.

Rather, the critical focus is on the witness to the religiosity of the Maccabean time period.

Emperor Han Wudi’s reign sees great territorial expansion and a burst of economic and cultural activity.

His armies push north and west into central Asia, east to Korea, and south to the coast.

Commerce with the states of western Asia increases, silk becomes a major export, and inventors discover ways to make paper and porcelain.

Han historiographer Sima Qian writes Shiqi (Shih chi) ("The Records of the Historians"), which will serve as the prototype for the official histories of successive dynasties.

Han scholars direct their efforts to find or reconstruct the Zhou classics banned during the Qin dynasty.

Confucianism begins to replace Legalism as the Han dynasty’s orthodox philosophy.

The Seleucid–Parthian wars have brought about a lasting cultural exchange between East and West.

Greek ideas will be remembered in the East long after they have been forgotten about in the West, while Persian and Indian influences in sciences, literature and architecture will be introduced to western powers such as the Romans.

The westward expansion of Parthia during the war will eventually lead to clashes with the Roman Empire.

The Roman–Parthian Wars will embroil these ancient empires until the third century.

The Middle East: 129–118 BCE

The Seleucid Collapse and Parthian Ascendancy

The period from 129 to 118 BCE signifies a crucial turning point in Middle Eastern history, characterized by the near-complete collapse of the Seleucid Empire and the definitive rise of Parthian power.

In 129 BCE, the Parthians decisively repel the last major Seleucid attempt at reconquest in a significant battle at Ecbatana, where Seleucid king Antiochus VII is killed. This crushing defeat effectively signals the end of Greco-Macedonian influence east of the Euphrates and severely weakens the already fragile Seleucid state. Following this loss, the Seleucid Empire shrinks dramatically, essentially reduced to a rump state consisting primarily of Antioch and its immediate surroundings.

The Seleucid realm plunges into internal chaos, with multiple claimants battling for control and neighboring states steadily encroaching upon its diminished borders. The return of former king Demetrius II from Parthian captivity only exacerbates the instability. During his second reign, Demetrius holds limited territory and is assassinated around four years later, highlighting the Empire's rapid decline into internal fragmentation.

This era also witnesses profound cultural exchanges between the Greco-Macedonian west and the Persian-influenced east. Greek thought and practices deeply permeate eastern regions, while Persian and Indian sciences, literature, and architectural influences gradually spread westward, leaving enduring legacies.

Significantly, Parthia's westward territorial expansion during these years sets the stage for inevitable conflicts with the rising power of Rome. The resulting Roman–Parthian rivalry will dominate geopolitical dynamics in the Middle East for several centuries.

Thus, the period from 129 to 118 BCE marks the decisive demise of Seleucid dominance, solidifies Parthian power, and initiates a lasting geopolitical rivalry between Parthia and Rome, profoundly reshaping the Middle East.