Congress of Vienna. The Congress of Vienna marked the end of Napoleonic rule had a huge impact on the Spread of Nationalism in Europe. Listen and watch the clip on history through maps on Europe from the Congress of Vienna to the outbreak of WW.ongress of Vienna. The Congress of Vienna marked the end of Napoleonic rule had a huge impact on the Spread of Nationalism in Europe. Listen and watch the clip on history through maps on Europe from the Congress of Vienna to the outbreak of WW.