jan 1, 1820 - Protocol of Troppeau
Description:
The result of the Congress of Troppeau (Russia, Prussia, and Austria-Hungary); declaration that asserted that stable governments might intervene to restore order in countries experiencing revolution; an agreement among the major European powers in 1820 allowing one government to intervene in the affairs of another in order to restore stability; agreement amng Eastern Great Powers to oppose revolutionary states)Added to timeline:
Date:
jan 1, 1820
Now
~ 205 years ago