noun
Keien period
Historical term for the period of alternating premierships of Katsura Tarō and Saionji Kinmochi, roughly 1905–1912, between the Russo-Japanese War and the Taishō Political Crisis.
桂園時代は、桂太郎と西園寺公望が交互に首相を務めた時期を指す。
The Keien period refers to the time when Katsura Tarō and Saionji Kinmochi alternated as prime ministers.