Germany unification before the wars

Revolution in prussia 1848:

An Announcement by Frederick William IV (March 21, 1848)

The Barricades at the Corner of Kronenstrasse and Friedrichstrasse (March 18-19, 1848)

Economic unity:

Images - Economy and Labor "Beneficial Results of Protectionism" (1848)

 Railroad connecting the german

The Future of the Empire Foretold" Zollverein

Cultural Unity:

Richard Wagner, What is German? (1865/1878)

"On the Cologne Cathedral Festivities

Addresses to the German Nation

Germany's Unification

The Public Mood in Bavaria and Other Federal States through British Eyes

Bismarck realpolitik:
Otto von Bismarck, Forging German Unity (c. 1880)

                      Bismarck Unmasked

Blood and Iron speech:

Excerpt from Bismarck's "Blood and Iron" Speech (1862)

german confederation:Southern Germany and the North German Confederation (April 11, 1868) 
                                   German Federal Act (June 8, 1815)  

denmarck war:

Solemn Funeral Service for the Murdered Parliamentarians of the Frankfurt National Assembly (September 21, 1848)

German-Danish War: Prussian Troops March through the Brandenburg Gate (1864)

map for comparison:

Creation of the German Empire (1866-1871)

Central Europe (1815-1866)