Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Some of the last areas to join this group were admitted via the Convention of Gastein, and the Heppenheim program and the Vormarz movements attempted to democratize this organization. Governed by a (*) Bundesrat, it implemented the ideas of Friedrich List. Members adopted the metric system and the Vereinsthaler currency. For 10 points, name this economic union, a precursor to German unification.
Student:
History