Buried in pits near the city of Xi’an in central China lies one of the largest funerary complexes ever built, an underground army numbering in the thousands, each figure carrying its own facial features, hairstyle, and armor detail. The soldiers were never meant to be seen. They were sealed in the earth more than two thousand years ago to stand guard over the tomb of Qin Shi Huang, the ruler who first unified China, and they remained hidden until farmers digging a well in 1974 struck fragments of clay armor a few feet below the surface.
An army built for the afterlife
The figures make up what is now known as the Terracotta Army, a vast collection of life-size clay soldiers, horses, and chariots arranged in battle formation. Archaeologists estimate the complex originally held somewhere in the range of eight thousand soldiers, along with hundreds of horses and dozens of chariots, spread across several large pits. The purpose was explicitly funerary: the army was constructed to protect Qin Shi Huang in the afterlife, reflecting the elaborate belief systems surrounding death and the continuation of imperial power beyond a ruler’s lifetime.
The scale of the mausoleum complex
The Terracotta Army is only one section of a far larger mausoleum built for the first emperor, a complex that historical records describe as having taken decades and an enormous workforce to complete. The ancient historian Sima Qian, writing roughly a century after the emperor’s death, described a burial chamber containing models of palaces, rivers of mercury, and mechanical crossbows rigged to fire on intruders, details that have never been independently verified because the central tomb mound itself has not been excavated. Modern soil surveys have detected unusually high mercury concentrations near the presumed tomb location, a finding some researchers interpret as tentative support for the ancient account.
Beyond the soldier pits, archaeologists working the wider mausoleum grounds have uncovered separate burial pits containing bronze chariots, stables with sacrificed horses, and mass graves believed to hold laborers and lower-status officials connected to the tomb’s construction. Some of these secondary pits held terracotta figures depicting acrobats, musicians, and government officials rather than soldiers, suggesting the complex was designed to recreate an entire functioning court for the emperor’s afterlife, not just a military guard.
No two soldiers are identical
One of the most striking aspects of the army is the degree of individuality in the figures. Each soldier appears to have a distinct face, and archaeologists have identified variations in hairstyles, armor styles, and rank insignia that correspond to different military roles, from infantry to archers to officers. This was achieved through a modular production process: bodies were assembled from standardized molded parts, then customized with individually sculpted heads and hand-applied details, a method that allowed craftsmen to mass-produce thousands of figures without making them visually uniform.
Inscriptions found on some of the figures identify individual workshops and craftsmen responsible for specific pieces, evidence that the emperor’s administration organized production across multiple workshops operating in parallel rather than a single centralized studio. That division of labor helps explain how a workforce that historical estimates place in the hundreds of thousands, counting everyone involved in the broader mausoleum project, could complete an undertaking of this scale within a single emperor’s reign.
Color that has almost entirely disappeared
The soldiers were not left as bare clay. Excavation has shown that the figures were originally painted in vivid colors, with lacquer applied beneath layers of pigment to depict uniforms, skin tone, and armor detail. Exposure to air after burial for more than two thousand years causes that lacquer to curl and flake within minutes of excavation, meaning most of the original color has been lost during the very act of unearthing the figures. Conservationists have since developed methods to stabilize pigment on newly excavated pieces, though much of the collection uncovered in earlier decades no longer shows its original paint.
Ongoing excavation, decades later
More than fifty years after the initial discovery, large portions of the site remain unexcavated. Archaeologists have deliberately paused work on parts of the complex, including the central tomb mound, citing both the technical challenges of preserving painted surfaces and a broader preference for leaving sections intact until conservation techniques improve. The pits that have been opened, organized into three main excavation areas near the mound, continue to yield new finds, including additional figures, weapons, and evidence of the workshops that produced them.
A UNESCO World Heritage site
The Terracotta Army and the surrounding mausoleum complex were inscribed as a UNESCO World Heritage Site in 1987, recognized for both their historical significance and the exceptional craftsmanship on display. The site today draws large numbers of visitors to purpose-built museum halls constructed directly over the excavation pits, allowing the public to view the ranks of soldiers largely as archaeologists found them, still standing in the formation they were arranged in more than two millennia ago.
The museum complex built around the discovery site has itself become one of the most visited archaeological attractions in the world, drawing millions of tourists annually to Xi’an specifically to see the pits. That level of ongoing public interest has helped fund continued excavation and conservation work, even as researchers deliberately hold back from opening the central tomb mound, preferring to wait for future advances in preservation technology before risking damage to whatever remains sealed within it.
This article was produced with the assistance of AI and reviewed by Morning Overview editors.
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