<human>:  What is the history of the Japanese tea ceremony?
<bot>: The Japanese tea ceremony, also known as Chanoyu, is a traditional ritual in Japan that has been around since the mid 15th century. It is performed by a host and one or more guests, who gather together to prepare and enjoy a bowl of matcha green tea in a specific spiritual and aesthetic atmosphere. The ceremony centers around the preparation of the tea, the appreciation of its flavor, the graceful actions of the host, and the beauty of the tea room and its utensils. The ceremony itself is highly ritualized with specific grace and etiquette that have been followed for centuries.