On August 5, 1772, at Saint Petersburg, the three neighboring powers - Russia, Prussia and Austria - signed the partition treaty.

On June 10, 1899, the Western powers signed the Treaty of Berlin, which partitioned Samoa in two.

South America's three dominant military powers, Argentina, Brazil and Chile, signed a declaration today banning the development, manufacture and use of chemical weapons.

The Straits Question was settled four years later, when both powers signed the Treaty of Unkiar Skelessi.

Due to this, the great powers convened and signed the Treaty of Berlin, superseding the Treaty of San Stefano, which never went into effect.

The three European powers signed the Treaty of London on 31 October, to unite their efforts to receive payments from Mexico.

In 1820, Britain then the dominant power in the region signed "General Treaty of Peace" with tribal chiefs including Al Khalifa.

The German powers signed an agreement on March 11, under which the compacts of 1852 were declared to be no longer valid.

Finally, all the powers present signed a Nine-Power Treaty which guaranteed the independence of China and the principle of the "open door" in trade with that country.

King Mongkut loosened Thai trade restrictions and many Western powers signed trade agreements with the monarch.