Marceli Handelsman

Afterwards Handelsman continued his studies at various European universities including Paris, Zürich (where he received his doctorate in 1908), Rapperswil, Vienna and finally London.

One of the most prominent historians of the age, between 1918 and 1939 he was also the editor-in-chief of the Historical Review and the head of a Commission for the Atlas of History of Polish Lands (1920–35).

Initially a medievalist, in the Interbellum Handelsman devoted much study to 19th-century Polish political history, including the works of Prince Adam Jerzy Czartoryski and the Hôtel Lambert circle.

After the outbreak of World War II Marceli Handelsman hid from the Germans because of his Jewish roots.

Among his students were many figures such as Stanisław Arnold, Artur Eisenbach, Aleksander Gieysztor, Stefan Kieniewicz, Tadeusz Manteuffel, Emanuel Ringelblum, and Mieczysław Żywczyński.