The seventh grand master of Omote Senke (a branch of the Senke school of tea ceremony), Nyoshinsai, and the eighth grand master of Ura Senke (another branch of the Senke school of tea ceremony), Itto YUGENSAI, formulated Senke Shichijishiki (The Seven Rites of the Sen School) during the Genroku era at the end of the 17th century, which led to the establishment of the current form of sado.
表千家の7代・如心斎や裏千家8代・又玄斎一燈は17世紀末の元禄期に千家七事式を考案し、現在に繋がる茶道の形式が確立されていった。