Chinese tea Longevity Sprout, Eternal Spring Jade Leaf, Dragon in the Clouds, Longevity Dragon Sprout, Dragon Phoenix and Flower, and Eternal Spring Silver Sprout. The Ming Dynasty scholar Wen Zhenheng's encyclopedic book "Zhang Wu Zhi" (; Treatise on Superfluous Things), volume 12, contains the following descriptions of several famous Ming Dynasty teas: During this time, Huqiu tea (; lit. "Tiger Hill tea"), not to be confused with the black tea of the same name from the Nilgiris District in what is now Tamil Nadu, India) was purportedly developed as the finest tea in the world; however, the production quantity was rather small,
Qin Jiushao Qin Jiushao Qin Jiushao (, ca. 1202–1261), courtesy name Daogu (道古), was a Chinese mathematician, inventor, politician and author. He is credited for discovering Horner's method as well as inventing Tianchi Basins, a type of rain gauge instrument used to gather meteorological data. Although Qin Jiushao was born in Ziyang, Sichuan, his family came from Shandong province. He is regarded as one of the greatest mathematicians in Chinese history. This is especially remarkable because Qin did not devote his life to mathematics. He was accomplished in many other fields and held a series of bureaucratic positions in several Chinese provinces.