Short answers, pulled from the story.
Seitarō Kitayama directed the first commercial anime productions in Japan during 1917. The year 1917 marked a turning point for Japanese cinema when he released ten distinct animated shorts between January and December 1917.
Seitarō Kitayama produced multiple short films that same year including Battle of a Monkey and a Crab, Yume no jidōsha, Neko to nezumi, Itazura posuto, Hanasaka-jiji, Chokin no susume, and Shitakire suzume. These works included visual patterns where characters moved against static backgrounds to define his early style.
Stop-motion and cel animation formed the core of Seitarō Kitayama's production process using frames drawn by hand on transparent sheets called cels. He layered these sheets over painted backgrounds to create movement while managing both direction and technical execution alone.
Yoshirō Irie, a researcher at Japan's National Film Center, labeled Seitarō Kitayama one of the fathers of anime. Historians classify him as central to Japanese film history and his name appears in academic texts discussing the origins of Japanese animation.
Seitarō Kitayama adapted traditional folktales such as Urashima Tarō about a fisherman visiting an underwater palace and Hanasaka-jiji involving an old man and blooming flowers. Bunbuku chagama featured a magical teapot from folklore that carried cultural weight within Japan before becoming screen content.