Governments once suppressed a famine survival book to preserve an image of effortless abundance.

Centuries ago, a Chinese prince wrote a book cataloging wild plants people could eat during starvation. When the government struggled to feed its people, officials shared the book to help them survive. But when a later dynasty wanted to look all-powerful and prosperous, it hid the guide away. Preparing for mass starvation contradicted the image of an abundant empire. Only when severe crises returned did officials bring the survival guide back into official use.

Why it matters

When crises hit, rulers do not just manage supplies; they decide what kinds of knowledge are allowed to be seen. Understanding how imperial China promoted, buried, and later revived survival guides shows how states reshape practical facts to fit their political image.

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