The Kushan Empire (c. 30-375 AD)
A Silk Road empire founded by the Yuezhi people in Bactria that at its height under Kanishka ruled Central Asia, Afghanistan, and much of northern India. The Kushans secured the trade routes between Rome, Persia, India, and China, patronized the Gandhara school of Buddhist art, and played the central role in transmitting Mahayana Buddhism along the Silk Road to East Asia.
Events
The Yuezhi Settle in Bactria
After being displaced from their homeland in Gansu by the Xiongnu confederation, the nomadic Yuezhi people migrated west and established themselves in Bactria, the former Hellenistic kingdom of Central Asia. There they absorbed the Greek and Iranian traditions of the region, including coinage and administrative practices that shaped their later empire.
Location: Bactria (modern Afghanistan and Central Asia)
Kujula Kadphises Unites the Yuezhi Tribes
Kujula Kadphises, ruler of one of the five Yuezhi tribes, unified the tribes into a single confederation and founded the Kushan Empire. He conquered the Kabul valley and the former Indo-Greek and Indo-Parthian territories south of the Hindu Kush, opening the way into the Indian subcontinent.
Location: Bactria
Gold Coinage Links the Kushans to Rome
Vima Kadphises, Kujula's grandson, issued the first Kushan gold coinage, modeled on Roman aurei that reached Central Asia through Silk Road trade. Roman gold payments for silk and other goods flowed east through Kushan territory, making the empire one of the richest intermediaries of classical long-distance commerce.
Location: Bactria and Gandhara
The Accession of Kanishka
Kanishka I came to the throne and shifted the imperial center to Purushapura and Mathura, ruling from Bactria through Kashmir to the upper Gangetic plain. In his reign the Bactrian language replaced Greek in official inscriptions, and the empire reached its greatest territorial extent, controlling both the Silk Road routes over the Hindu Kush and the Karakoram passes toward China.
Location: Purushapura (Peshawar), Gandhara
The Buddhist Council and the Rise of Mahayana
Kanishka convened a great Buddhist council in Kashmir, associated in Buddhist tradition with the compilation of Sarvastivada commentaries and the consolidation of the emerging Mahayana school. Under Kushan patronage the Gandhara school of art produced the first large-scale anthropomorphic images of the Buddha, blending Greek and Indian forms, and Buddhist missionaries traveled the Karakoram routes to the Han empire.
Location: Kashmir
Vasudeva I and the Turn to Shaivism
Vasudeva I, the last of the great Kushan rulers, took his name from the Hindu god Vasudeva-Krishna and gave the dynasty a public Shaivite orientation, marked by the bull-and-Shiva imagery on his coins. The Kushan religious landscape remained plural — Buddhist, Hindu, Zoroastrian, and Hellenistic cults appear across imperial coinage and inscriptions.
Location: Mathura, India
Sasanian Conquest of the Western Kushan Lands
The Sasanian Persian Empire under Shapur I conquered Bactria, the empire's homeland, installing vassal rulers known to history as the Kushanshahs. The loss of the western territories began the empire's fragmentation into a reduced eastern remnant.
Location: Bactria
The Guptas Subjugate the Eastern Remnant
The Gupta emperor Samudragupta's northern campaign brought the remaining Kushan principalities in the Gangetic plain under Gupta hegemony. The Kushan dynasty lingered for decades as minor rulers; the last Kushan ruler, Kipunada, disappears from the record around 375, closing an empire that had connected the classical world from the Mediterranean to China.
Location: northern India