Snow was described in China, as early as 135 BCE in Han Ying's book "Disconnection, which contrasted the pentagonal symmetry of flowers with the hexagonal symmetry of snow [REF].
From 1936 to 1949, Ukichiro Nakaya created artificial snow crystals and charted the relationship between temperature and water vapor saturation, later called the Nakaya Diagram and other works of research in snow, which were published in 1954 by Harvard University Press publishes as Snow Crystals: Natural and Artificial.