Significant to the
history of agriculture, Chinese author Jia Sixia writes the treatise "Chimin Yaoshu" in this year, and although it es 160 previous Chinese
agronomy books, it is the oldest existent Chinese
agriculture treatise. In over 100,000 written
Chinese characters, the book covers land preparation,
seeding, cultivation,
orchard management,
forestry,
animal husbandry,
trade, and culinary uses for
crops.