Task: Text Categorization
Input (English): One person who advocated this idea was thrown in jail in Nuremberg, and Hans Delbruck prevented the entry of a prospective member. A topic of discussion at the Convention of Gastein, this idea was popularized by the author of The National System of Political Economy, Friedrich List, and a rival organization was created in the Steuerver until its absorption through a series of treaties in 1834. First implemented by Prussia, which created a North German version of it, this organization created a uniform tariff against all non-members, and later absorbed Alsace-Lorraine in 1872 and the Hanseatic Cities in 1888. For ten points, identify this German economic organization which excluded Austria and knocked down internal trade barriers, whose name comes from the German for "customs union".
Output (English): History