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Referred to as 'her brilliant book on the Great Wall of China' - quoted about wall building being about joining ravines and fortresses rather than a continuous line

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Described as having 'wrote a brilliant book on the first emperor of China' - quoted about the terracotta army being 'an industrial rather than an artistic project' and 'the most extraordinary example of creative mass production in the world'

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Referenced at the beginning of the episode as an essay published in 1950 discussing the first emperor of China building the Great Wall and burning books

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Mentioned as an ancient Chinese historical text from which the 'Spring and Autumn Period' derives its name

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Ancient Chinese text quoted extensively in the episode, written about 50 years after the first emperor's death, discussing his tyrannical rule

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A state-sanctioned popular history biography published in the mid-1970s after Lin Biao's death, which sold almost two million copies within two years and presented the first emperor as a farsighted ruler

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Mentioned as 'the little red book' - the collection of Mao sayings compiled by Lin Biao that people would wave and brandish