How did each of the following lead to german unification

The German Empire was founded on January 18, 1871 after the victory of Prussia in the Franco-Prussian war and meant the unification of the different German states around Prussia, excluding Austria, under the leadership of Chancellor Otto von Bismarck. A period of great development of the German nation began in all fields: economic, geographical, political and military.

However, as the Germans discovered, great speeches, flags, and enthusiastic crowds, a constitution, a political reorganization and the provision of an imperial superstructure; and the revised Customs Union from 1867 to 1868, still did not make a nation.

A key element of the nation-state is the creation of a national culture, often but not necessarily. Through national politics the Kulturkampf (which followed a political, economic, and administrative unification model tried to go in that direction, with a notable lack of success, with some contradictions in German society. Specifically, it was a struggle for language, education and religion A policy of Germanization of non-German people in the empire's population, including Poles and Danes, began with language, in particular, the German language, compulsory schooling (Germanization) , and the attempt to create standardized curricula for those schools to promote and celebrate the idea of a shared past. Another important element in building the nation

Explanation:

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;