What is the historical evolution and development process of yogurt that is often seen in life?

Yogurt has a long history in China, such as The Book of Rites? Li Yun, during the Spring and Autumn Period and the Warring States Period, sacrifices included dairy products as well as meat. ? Baked and eaten, thinking it was cheese? 、? Sheep and cheese to hide wax? Cheese is the predecessor of modern yogurt. Also mentioned in the Official History of the Song Dynasty? Cattle and sheep cheese house for making crispy cheese? . It can be seen from the literature that the history of yogurt is not only long, but also the quality of yogurt is constantly improving through the continuous improvement of predecessors.