In 1922 Dubnow emigrated to Kaunas, Lithuania, and later to Berlin. His magnum opus was the ten-volume "World History of the Jewish people", first published in German translation in 1925–1929. Of its significance, historian Koppel Pinson writes: With this work Dubnow took over the mantle of Jewish national historian from Graetz. Dubnow's "Weltgeschichte" may in truth be called the first secular and purely scholarly synthesis of the entire course of Jewish history, free from dogmatic and theological trappings, balanced in its evaluation of the various epochs and regional groupings of Jewish historical development, fully cognizant of social and economic currents and influences ...