Sasanian Persia Inherits Parthia's Toll Booth
A new Persian dynasty keeps the Silk Road's middle firmly under Persian control for four centuries
Quick facts
- Founder
- Ardashir I
- Founding event
- Defeat of Parthian king Artabanus V, 224 CE
- Peak extent
- Sogdiana to the Indus Valley
- Economic role
- Customs taxes on Chinese and Indian goods in transit
What happened
In 224 CE the forces of Ardashir, a king from the southwestern Iranian region of Pars, defeated and killed the last Parthian ruler, Artabanus V, ending nearly four and a half centuries of Parthian rule and founding the Sasanian Empire. Under Ardashir and his successors the new empire stretched, at its widest, from Sogdiana in the north to the Indus Valley in the east, positioning it exactly where Parthia had been: astride the routes linking Central Asia and China to the Mediterranean world. Sasanian merchants took over the Parthian role as middlemen, and the Sasanian state taxed goods in transit from China (silk, paper) and India (spices) before re-exporting them toward Europe, collecting substantial customs revenue in the process. Sasanian kings invested directly in infrastructure to protect and expand this trade rather than simply taxing what passed through.
Why it matters
The change of dynasty in Persia did nothing to loosen the chokehold on East-West overland trade; it simply changed who was collecting the toll. For the next four centuries, until the Arab conquest, anyone moving goods between the Roman or Byzantine Mediterranean and Central Asia or China still had to pass through, and pay, a Persian state.
How we know
The University of Washington's Silk Road Seattle project's essay on the Sasanian Empire traces the dynasty's founding through Ardashir's defeat of Artabanus V and describes the empire's territorial reach and its investment in trade infrastructure.
Sources
- Silk Road Seattle, University of Washington. The Sassanian Empire · Reputable sourcedepts.washington.edu · The domain "depts.washington.edu" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
- World History Encyclopedia. Sasanian Empire · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
See something wrong? . Corrections with a source get fixed fastest.
Part of a timelineThe Silk Road29 events · How camel caravans, Sogdian merchants, and pilgrim monks stitched China to Rome, Byzantium, and the Islamic world across a thousand miles of desert and steppeView all →