Task: Text Categorization
Input (English): Among the minor participants in this event were Pedro Gmez Labrador and Richard Trench, while the Iroquois Confederacy also played a minor role. Some minor consequences of the event were the transfer of control of the Seychelles and Olivenza, but it is perhaps better known for establishing the Kingdom of Hanover and condemning the slave trade. This event was responsible for guaranteeing the neutrality of Switzerland, a provision promoted by Charles Pictet de Rochemont. Castlereagh and Talleyrand were, for ten points, part of which conference that established the Concert of Europe, chaired by Metternich  
Output (English): History