Historical Event · 221 BC

Unification of China

The unification of China in 221 BC was the conquest by the state of Qin of all rival kingdoms, creating the first unified Chinese empire under Qin Shi Huang.

Key Takeaways

  • In 221 BC the Qin defeated the last rival states, unifying China for the first time.
  • Qin Shi Huang took the title of First Emperor.
  • The new empire standardized writing, currency and measurements.

Location: China

For centuries the lands of ancient China were divided among warring states. In 221 BC the king of Qin completed the conquest of his rivals and declared himself Qin Shi Huang — “First Emperor.”

The unification ended generations of conflict and, by standardizing writing, currency and weights under Legalist administration, created the centralized imperial template that every later Chinese dynasty would inherit.

Outcome

Creation of the first unified Chinese empire and the Qin dynasty.

Significance

Ended centuries of warfare and established the centralized imperial model that defined China for two millennia.

Key Figures

Frequently Asked Questions

When was China first unified?

China was first unified in 221 BC, when the state of Qin conquered the last rival kingdoms and Qin Shi Huang declared himself First Emperor.