Engels praises the historian Wilhelm Zimmermann's book The History of the Great Peasant War (1841–1843) as "the best compilation of factual data" regarding the Peasant War of 1525[3] and acknowledges that most of the material relating to the peasant revolts and to Thomas Müntzer has been taken from Zimmermann's book.[4] The Peasant War in Germany originally appeared in the fifth and sixth issues of the Neue Rheinische Zeitung-Revue, a political economic review edited by Karl Marx in Hamburg, and was later reissued in book forms.