You will be given a definition of a task first, then some input of the task.
In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

The nations involved in it had allied immediately before it through the Treaty of Chaumont, and one of the figures involved in it continued the reforms of Karl vom Stein. Due to disagreement over Italys settlement, Spain refused to sign the Final Act of it, and Switzerland was granted a new constitution. Swedish Pomerania was given to Prussia, and a loose German confederation was established, much to the delight of Klemens von Metternich. FTP, identify this 1815 meeting that took place in Austria.
Output:
History