The " Uwai Kakuken Nikki " (Diary of Uwai Kakuken), authored by Uwai Kakuken (1545–1589) of Satsuma, is a significant historical document, as the original manuscript has been preserved. In this diary, the term " chaynou-kai-shaku " appears, which indicates that a tea gathering and a banquet with sake were held on the same day, serving as entertainment for samurai. The diary records that the procedure of the tea gathering was similar to that of present-day tea gatherings. However, although the process is described, there is no detailed record of tea utensils or related items. This raises questions regarding the reliability of other tea gathering records previously examined. In addition, the diary refers to recreational activities such as " chateki, " which involved the use of archery. These findings suggest that chanoyu (the Japanese tea ceremony) may have been enjoyed in more diverse forms than previously assumed, and it is necessary to reconsider its various aspects.

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