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Constitutions That Shaped History

Explore the constitutions and constitutional developments that shaped governments and political systems throughout history. Discover landmark documents, constitutional conventions, amendments, reforms, and political turning points that defined governmental powers, established institutions, protected rights, and influenced the development of modern states.

Major Historical Events Involving Constitutions

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📅 Oct 8, 1600

San Marino Adopts the Written Constitution It Still Uses

San Marino adopted its written constitution on October 8, 1600, and the Statutes of 1600 still underpin the republic's law.

⛳San Marino
📖Law & Justice📖Politics
🔖Constitutions
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📅 Sep 17, 1787

Delegates Sign the United States Constitution in Philadelphia

On September 17, 1787, delegates in Philadelphia signed the United States Constitution, replacing the Articles of Confederation.

📖Law & Justice📖Politics
🔖Constitutions
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📅 Nov 2, 1889

North Dakota and South Dakota Join the Union

On November 2, 1889, North Dakota and South Dakota became the 39th and 40th U.S. states.

📖Politics📖Society
🔖Constitutions
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📅 Sep 14, 1917

Russia Is Proclaimed a Republic

On September 14, 1917, Russia's Provisional Government declared the country a republic, weeks before the Bolshevik seizure of power.

⛳Russia
📖Movements📖Politics
🔖Constitutions
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📅 Nov 3, 1946

Japan Promulgates a New Peace Constitution

On November 3, 1946, Japan promulgated a new constitution renouncing war.

⛳Japan
📖Law & Justice📖Politics
🔖Constitutions
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📅 Sep 21, 1949

The First Plenary Session of the CPPCC Opens in Beiping

On September 21, 1949, the first CPPCC plenary session opened in Beiping and began the process that established the People's Republic of China.

⛳China
📖Politics
🔖Constitutions