A lecture on the history of tea art will be held in the school auditorium at eight o'clock on Saturday. Tea originated in China and was originally used as a sacrifice. However, it was regarded as a fresh vegetable from the late Spring and Autumn Period to the middle stage of the development of Chinese and Western medicine. In the late Western Han Dynasty, it was developed into a high-grade palace drink, and the popular drink among ordinary people was after the Western Jin Dynasty. The earliest discovered remains of artificially planted tea are located in the Luosi Mountain site in Yuyao, Zhejiang Province, with a history of more than 6,000 years. Tea originated in China. Leaves are leather-like, rectangular or oval, and can be directly brewed with boiling water. They are divided into six categories according to varieties, production methods and product introduction. Picking can be divided into spring tea, summer tea, autumn tea and winter tea according to seasons. Tea added from various kinds of crude tea or refined tea, including finished tea, brick tea, tea essence, medicinal health tea and tea-containing drinks. Tea contains catechins, cholestenone, caffeine, inositol, folic acid, pantothenic acid and other ingredients, which can improve human health. Tea beverage-tea is known as "one of the three largest drinks in the world"