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战国时期(前475-前221) 战国七雄(齐、楚 、秦、燕、赵、魏、韩) 商鞅变法(建立县制) (jan 1, 475 BC – jan 1, 221 BC)

Added to timeline:

Byyy
17 Jan 2021
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405

Date:

jan 1, 475 BC
jan 1, 221 BC
~ 254 years