Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/humanities/world-history/ancient-medieval/zhou-qin-han-china/v/zhou-qin-and-han-dynasties

Sal provides a historical overview of the Zhou, Qin, and Han dynasties in China.

Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/world-history/ancient-medieval/zhou-qin-han-china/e/key-concepts--rise-of-chinese-dynasties

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