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.
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.
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.
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.
Japan Promulgates a New Peace Constitution
On November 3, 1946, Japan promulgated a new constitution renouncing war.
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.