475 – 221 BC
For two and a half centuries, seven great kingdoms tore apart the ruins of the Zhou realm in the deadliest wars the ancient world had yet seen — mass conscript armies of hundreds of thousands, crossbows, iron, and siege engineering. From that slaughter emerged the ruthless state of Qin, whose king Ying Zheng conquered all rivals by 221 BC and made himself Qin Shi Huang, First Emperor — founder of a unified China that has endured, in one form or another, ever since.
Chapter-by-chapter narrative with maps, primary sources, and key events.
Explore battles on a live map with a timeline slider and territory overlays.
Deep-dive into every major engagement — commanders, casualties, significance.
Biographical flip cards with real portraits, facts, and full biography pages.
Trace each figure's full life journey — birth, education, battles, and death — on a live map.
Scroll-driven visualization of casualties — each dot a thousand lives.
Weapons, war machines, and the military innovations that defined how this conflict was fought.
Cause-and-effect chains tracing the war's long shadow on history.
War crimes, massacres, and the darkest chapters of this conflict — documented for history.
For two and a half centuries, seven great kingdoms tore apart the ruins of the Zhou realm in the deadliest wars the ancient world had yet seen — mass conscript armies of hundreds of thousands, crossbows, iron, and siege engineering. From that slaughter emerged the ruthless state of Qin, whose king Ying Zheng conquered all rivals by 221 BC and made himself Qin Shi Huang, First Emperor — founder of a unified China that has endured, in one form or another, ever since.
The Warring States & the Unification of China was fought from 475 to 221 BC.
The Warring States & the Unification of China was fought between State of Qin and The Six Rival States.
An estimated 3,500,000 people died in The Warring States & the Unification of China, including roughly 2,000,000 military and 1,500,000 civilian deaths. Figures are scholarly estimates and vary by source.
Major engagements included Battle of Changping, Siege of Handan, Battle of Yique, and The Conquest of Chu.