Constitution of Japan
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The Constitution of Japan is the constitution of Japan and the supreme law in the state. It was written primarily by American civilian officials working under the Allied occupation of Japan after World War II. Wikipedia
Amendments: 0
Author(s): Allied GHQ and members of the Imperial Diet
Chambers: Bicameral (National Diet: House of Representatives, House of Councillors)
Date effective: 3 May 1947
Executive: Cabinet, led by a Prime Minister
First court: 4 August 1947
First legislature: 20 April 1947 (HC); 25 April 1947 (HR)