Before Qin Shi Huang took power, the land we now call China was divided into seven warring states that had been fighting each other for centuries. Each had its own ruler, its own laws, and its own armies. The man originally known as Ying Zheng, king of the state of Qin, spent more than two decades conquering rival kingdoms one by one. By 221 BCE, he had defeated all of them and unified the entire region under his rule. He gave himself a new title that no Chinese ruler had ever used before, calling himself the First Emperor, which in Chinese is Qin Shi Huang. The age of Chinese empire had begun.

Qin Shi Huang was not satisfied with simply conquering his rivals. He set out to remake the entire culture of his newly unified empire. He standardized the Chinese script so that all regions wrote the same characters, regardless of their spoken dialects. He standardized weights, measures, and currency, making trade easier across the empire. He even standardized the width of cart axles so that wheel ruts on roads would match throughout China. These reforms helped tie the vast empire together and laid the foundation for cultural unity that has lasted to this day.

Qin Shi Huang is also remembered for some of the most ambitious construction projects in human history. He ordered the connection of older defensive walls in the north into a single fortification, the early version of what would become the Great Wall of China. He built a vast network of roads to move armies and goods. He commissioned the construction of an enormous tomb complex for himself near modern-day Xi'an, a project that took decades and required hundreds of thousands of workers. Beneath this complex lay the famous Terracotta Army, more than eight thousand life-sized clay soldiers buried to guard him in the afterlife.

The first emperor's reign was not just about unification and reform. He ruled with extraordinary harshness. He ordered the burning of books that disagreed with his preferred philosophy and the execution of scholars who criticized him. Forced labor on his massive projects killed countless workers. He became obsessed with finding the elixir of immortality, sending expeditions to remote islands in search of magical herbs. Ironically, some historians believe he may have died in 210 BCE from mercury poisoning, after consuming pills that his alchemists claimed would grant him eternal life.

Qin Shi Huang's legacy is complicated. He was both a brilliant unifier who created the framework for modern China and a tyrant whose cruelty left scars that lasted for generations. The empire he built collapsed only a few years after his death, but the idea of a unified China — with one written script, one set of laws, and one emperor — survived. Every dynasty that followed, from the Han to the Ming to the Qing, built on the foundations he laid. The discovery of his Terracotta Army in 1974 reminded the modern world just how powerful and ambitious this first emperor truly was. Knowing his story is essential for understanding how China became the civilization it is today.