The article analyzes the factors and patterns that explain the entry of some societies and the non-entry of others into the European revolutionary wave of 1848-1849, examines the causes of the various results of the revolutions. The article implements the theoretical and historical approach in macro-sociology, including shuttle movements between the General hypotheses and the systematic comparison of cases for their verifi cation and correction. In the «Spring of Nations» as a vast wave of European revolutions of 1848-1849 the imperial center (Vienna) and ethnic provinces of the Austrian Empire (Venice-Lombardy, Hungary and the Czech Republic) were taken for analysis. The factors of creating a revolutionary situation are clarifi ed and the ...