Editing 1810s (section)

===Concert of Europe===
[[File:Europe 1815 map en.png|right|thumb|upright=1.35|National boundaries of Europe as set by the [[Congress of Vienna]], 1814.]]
{{Main|Concert of Europe}}
By 1815, Europe had been almost constantly at war. During this time, the military conquests of France had resulted in the spread of [[liberalism]] throughout much of the continent, resulting in many states adopting the [[Napoleonic code]]. Largely as a reaction to the radicalism of the [[French Revolution]],<ref>Wood, ''Empire of Liberty'' (2009), pg. 329.</ref> the victorious powers of the [[Napoleonic Wars]] resolved to suppress liberalism and [[nationalism]], and revert largely to the ''[[status quo]]'' of Europe prior to 1789.<ref>Wood, ''Empire of Liberty'' (2009), pg 330.</ref>

[[File:Congress of Vienna.PNG|left|thumb|Congress Vienna, Jean Godefroy – [[Jean-Baptiste Isabey]]]]
The result was the [[Concert of Europe]], also known as the "Congress System". It was the [[Balance of power in international relations|balance of power]] that existed in Europe from 1815 until the early 20th century. Its founding members were the [[United Kingdom of Great Britain and Ireland|United Kingdom]], [[Austrian Empire]], [[Russian Empire]] and [[Kingdom of Prussia]], the members of the [[Quadruple Alliance (1815)|Quadruple Alliance]] responsible for the downfall of the [[First French Empire]]; in time France became established as a fifth member of the concert. At first, the leading personalities of the system were British foreign secretary [[Robert Stewart, Viscount Castlereagh|Lord Castlereagh]], Austrian chancellor [[Klemens Wenzel, Prince von Metternich]] and [[Tsar]] [[Alexander I of Russia]].

The [[Kingdom of Prussia]], [[Austrian Empire]] and [[Russian Empire]] formed the [[Holy Alliance]] with the expressed intent of preserving [[Christianity|Christian]] social values and traditional [[monarchism]].<ref>[http://www.newadvent.org/cathen/07398a.htm Spahn, M. (1910). Holy Alliance. In ''The Catholic Encyclopedia''. New York: Robert Appleton Company. Retrieved May 15, 2010, from New Advent.]</ref> Every member of the coalition promptly joined the Alliance, save for the [[United Kingdom of Great Britain and Ireland|United Kingdom]].

Among the meetings of the Powers in the latter part of the 1810s were the Congresses of [[Congress of Vienna|Vienna]] (1814–1815), [[Congress of Aix-la-Chapelle (1818)|Aix-la-Chappelle]] (1818), and [[Carlsbad Decrees|Carlsbad]] (1819).