In the social sciences, however, modernization is an extremely complex and comprehensive concept, because it encompasses a huge set of transformations taking place in the economic, social and political structure of a nation. The modernization process can occur concurrently or separately in each of the constitutive structures of the social system. Modernization is a continuous process, which even today produces transformations in contemporary societies.
The Nullification crisis was a debate in 1832, over the south declaring tariffs from the north, unconstitutional. Both sides had a different viewpoint on state's rights towards the debate, causing the debate in the first place.