About this Holiday
Constitution Memorial Day (Kenpō Kinenbi) commemorates the promulgation of Japan's postwar Constitution on May 3, 1947, which established a constitutional monarchy with a parliamentary system and enshrined fundamental human rights, popular sovereignty, and pacifism. The Constitution's Article 9 — by which Japan renounces war as a sovereign right of the nation — is known worldwide as the 'Peace Constitution.' The day is observed with public forums and discussions about Japan's democratic future.