VOX POPULI: Showa Day a time to reflect to prevent repeat of deadly mistakes (天声人語)昭和100年の式典に
Then-Emperor Akihito and then-Empress Michiko plant a tree during a ceremony marking the establishment of Greenery Day at Showa Kinen Park in Tachikawa, Tokyo, on April 29, 1989. (Asahi Shimbun file photo)