| 1945 | |
|---|---|
| July 26 | United States, United Kingdom, and China announce the "Potsdam Declaration." |
| August 15 | Imperial Rescript declaring the end of the war is broadcast at noon. (Imperial Speech) |
| August 30 | General MacArthur arrives at Atsugi Airdrome. |
| September 2 | Instrument of Surrender signed on the deck of the USS Missouri. |
| October 4 | GHQ issues Civil Liberties Directive. MacArthur gives Konoye a suggestion for constitutional revisions. |
| October 9 | Kijuro Shidehara sets up his cabinet. |
| October 11 | MacArthur gives prime minister Shidehara a suggestion on liberalization of the constitution. |
| October 25 | Constitutional Problems Investigation Committee (Matsumoto Committee) is established. |
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| November 22 | Konoye presents his Draft of Constitution Revision to the Emperor. |
| December 26 | Constitution Investigation Association announces its "Outline of Constitutional Draft." |
| 1946 | |
| January 1 | The Emperor professes his humanity. |
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| February 1 | Mainichi Shimbun runs a scoop on "Constitutional Problems Investigation Committee Draft Proposal." |
| February 3 | MacArthur puts forth his "Three Basic Points" and orders Government Section to draft the GHQ Draft. |
| February 8 | Japanese government submits the "Gist of the Revision of the Constitution" to GHQ. |
| February 13 | Whitney refuses to accept the "Gist of the Revision of the Constitution" and hands over the GHQ Draft |
| March 6 | Japanese government announces, with the concurrence of GHQ, the "Outline of a Draft for a Revised Constitution." |
| April 17 | Draft for a Revised Constitution is announced in ordinary language. |
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| May 22 | First Yoshida Cabinet is formed. |
| June 20 | Constitutional Revision Bill is submitted to the 90th session of the Imperial Diet. |
| November 3 | The Constitution of Japan is promulgated. |
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| December 1 | Constitution Popularization Society is established. |
| 1947 | |
| May 3 | The Constitution of Japan is enacted. |
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