Qin Writing and Standardisation: Instruments of Imperial Rule

After unification in 221 BCE, the Qin court promoted common written forms, weights, measures and money across territories formerly governed by rival states. These standards helped officials communicate orders and compare quantities. Public inscriptions and the title of First Emperor proclaimed the ruler’s authority over the new realm. The programme built on institutions already developed in the Qin state.

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Writing as an instrument of government

Chinese characters had a long history before the Qin empire. During the Eastern Zhou period, regional states developed different forms of written characters. The Qin state had its own tradition, and its written forms had diverged less than those used in some other states. Once the Qin conquered its rivals, these differences mattered to a government seeking to communicate across former political borders. Shared character forms could help officials handle correspondence and records, and support the administration of trade, taxation and transport.

The formal writing style associated with this policy is small seal script, characterised by elongated, balanced characters. The historical account connects its promotion with the First Emperor and his chancellor Li Si. A primer called the Cangjiepian provided a model for learning characters; its title refers to Cangjie, the legendary inventor of writing. Promoting approved forms gave officials and learners a common reference.

Small seal forms appear on official and commemorative objects, including coins and stone inscriptions. Their balanced, formal appearance suited public display, but an elegant model was not necessarily the quickest form for routine paperwork. Simpler writing forms also developed alongside it.

Common measures and the banliang currency

Common weights and measures allowed officials to compare quantities across regions. Grain received into a storehouse, material issued to a workshop and goods assessed in an account could be expressed in shared units. The state also distributed inscribed weights and measuring vessels carrying the imperial order, making the standard a physical object that local officials could use.

Money offered a visible example of both continuity and change. Before unification, the Qin state already issued round coins known as banliang, named for a unit of weight. After 221 BCE, the court made this bronze coin the empire’s standard lower-value currency, replacing the different forms of money used in the former states. Qin coin policy also distinguished bronze currency from gold used at a higher level. The round coins had a central opening, and their inscription expressed an intended weight standard. Surviving coins vary in weight around the intended standard.

Coin moulds reproduced several pieces from a common design. The name banliang means “half a liang,” a liang being a unit of weight; the inscription therefore named the coin’s intended weight as well as identifying the currency. Surviving pieces vary in actual weight. Their common round form, square opening and inscription are clearer evidence of the shared design than an assumption that every casting weighed exactly the same.

Public inscriptions and imperial titles

Unification changed more than administrative practice. The ruler of Qin adopted the title Shi Huangdi, conventionally translated as First Emperor, combining elements of older exalted titles to claim a new position above the former kings. The title expressed the founding of an empire and the ruler’s claim to authority over the conquered states. A centralised hierarchy of officials, rather than rule through a collection of royal houses, gave that claim an administrative framework.

Stone inscriptions carried imperial statements into prominent places across the realm. The First Emperor’s tours included visits to ritual sites, and inscriptions set up during these journeys commemorated his achievements and proclaimed the new order. The historical record attributes several such texts to the tours, though only fragmentary remains of the original inscriptions are known. Their formal script and public setting made them more than routine records: they presented imperial authority to an audience beyond the court.

Ritual also helped shape the emperor’s public role. Qin rulers conducted official tours to ritual sites, a practice continued by the Han. Such ceremonies connected the ruler with the sacred geography of the empire and supported his elevated status.

Records, belief and material production

Writing also served the state’s effort to record its population. Qin registration practices began before unification and developed from recording individuals to keeping track of households. In 231 BCE, King Ying Zheng ordered the ages of adult men to be recorded. The system organised households into groups of five whose heads were responsible for reporting wrongdoing by other members. Lists excavated at Shuihudi in Hubei and Liye in Hunan, dating to the late third century BCE, provide evidence for record-keeping in this period. The excavated lists show officials putting population registration into practice.

Religious life included beliefs about human dead, heavenly spirits and spirits associated with features of the natural world. Animal sacrifice could be used in communication with spirits, while divination included heating bones or turtle shells and interpreting the resulting cracks. Astronomical and weather events could also be read as omens. These practices formed a wider setting for Qin ritual culture, while the emperor’s tours and public ceremonies gave that culture an explicitly imperial expression.

Standards also required skilled production. Scribes learned character models and adapted them to correspondence; metalworkers cast coins and measuring vessels; workshop officials checked goods and accounts. The Liye county documents preserve this practical side of standardisation in routine communication and the recording of quantities.

Burial workshops and production records

Workshops at Qin Shi Huang’s mausoleum formed clay figures from separate bodies, heads and limbs, joining the components with wet clay. Names and other marks on the figures have been associated with producers and supervisors. Some bronze swords buried in the pits carry dates from 245–228 BCE, recording manufacture before imperial unification.

From Qin coinage to Han currency

The Han government retained the banliang design after Qin fell. Later Han rulers altered coin weights before Emperor Wu introduced the wuzhu coin in 118 BCE. That coin’s name meant “five zhu,” referring to a different weight unit. Currency thus continued to use a denomination expressed as a weight while the state changed the standard itself.

For the wider setting, see Qin: The State and Empire That Unified China.