公元前221年，秦王朝统一六国后仍续向周边拓展，统一多民族国家初步形成。
B. C. , Qin Dynasty towards unify after the six country expanding to perimeter continuously still , unify multi-nationality country form tentatively.
公元前221年，秦王朝统一六国后仍续向周边拓展，统一多民族国家初步形成。
B. C. , Qin Dynasty towards unify after the six country expanding to perimeter continuously still , unify multi-nationality country form tentatively.
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