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* The Hongwu Emperor of the Ming Dynasty in China orders the Ministry of Public Works to issue a public notice that every 100 households in the lijia system are to set aside 2 mu ( 1, 390 m < sup > 2 </ sup >) of land for planting mulberry and jujube trees.

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* The Hongwu Emperor of the Ming Dynasty in China introduces the census registration system of lijia, or the hundreds-and-tithing system, throughout the Yangzi valley.

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