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How is the development of the work?
Two thousand scholars worked on the project under the direction of the Yongle Emperor (reigned 1402–1424), incorporating eight thousand texts from ancient times up to the early Ming Dynasty. They covered an array of subjects, including agriculture, art, astronomy, drama, geology, history, literature, medicine, natural sciences, religion, and technology, as well as descriptions of unusual natural
events. The Encyclopedia, which was completed in 1408 at Nanjing Guozijian (the ancient Nanjing University - Nanjing Imperial Central College), comprised 22,877 or 22,937 manuscript rolls, or chapters in 11,095 volumes occupying roughly 40 cubic metres (1400 ft³) and using 50 million Chinese characters. It was designed to include all that had ever been written on the Confucian canon, history, philosophy, and the arts and sciences. It was a massive collation of excerpts and works from the mass of Chinese literature and knowledge.