The German voluntary association (hereafter in German the Verein, or Vereine in the plural) played an important role in the evolution of German society in the later nineteenth century and in the first third of the twentieth. This sort of association (or male bourgeois club) was a cornerstone of European Enlighenment society at the end of the eighteenth century, of the liberal society of the Vormärz, and of the German political parties in the years 1848–1849. Furthermore, the Verein was one of the main characteristics in the rise and hegemony of German bourgeoisie in the second half of the nineteenth century, and one of the cornerstones of local society as it developed in Germany towards the end of the 1890s.

Research into the German Vereine is very advanced. To this day, historical research continues to benefit from Thomas Nipperdeys' breakthrough article concerning the importance of the Vereine in the rise of bourgeois-liberal society prior to 1848. Otto Dann, Wolfgang Hardtwig, and Dieter Düding have expanded our knowledge concerning the importance of the Vereine for the rise of bourgeois nationalism and liberalism before 1848. Regional studies have also emphasized these aspects during the Vormärz period and after.

Folklorist-anthropological research is indebted to Hermann Bausinger's article on the importance of the connection between the Vereine and the development of German folklore. Similarly, Max Weber paved the way for the sociological research on the Vereine that has flourished since the 1860s, led by sociologists such as Hans Jürgen Siewert and Gerhard Wurzbacher. These are the two dominant streams in current research of the Vereine, although it is beyond the scope of this article to explore them here.