In 1931, Franke retired at the age of 68, and was succeeded by
Erich Haenisch as the sinology chair of Berlin. He devoted his retirement to researching and writing his
magnum opus,
Geschichte des Chinesischen Reiches (
History of the Chinese Empire); the first volume was published in 1931. Soon afterward, the
Nazi Party came to power in Germany and in 1933 nearly wiped out German sinology in its purging of universities. In 1935 Otto Franke became a member of the
Göttingen Academy of Sciences and Humanities. By 1937, Franke had finished the third volume which covers Chinese history up to the
Tang dynasty. Soon World War II interceded and he did not complete the fourth volume, covering the
Song and
Yuan dynasties, until 1944. He wrote in the foreword of that volume explaining the delay: "The only reason is the terrible great war since 1939, the end of which is not to be seen anywhere. It not only made the required concentration difficult, but also increasingly limited my use of libraries, and finally made it altogether impossible. [...] My history of the Chinese empire remains but a torso [...] and I am not to finish the last volume." Though unfinished,
Geschichte des Chinesischen Reiches remains the standard history of China in Germany to this day.
De Gruyter reprinted the work in 2001. A major contribution of Franke's history is to present China as a dynamic and changing entity, rejecting the view held by
Hegel and
Leopold von Ranke that Chinese history was mostly static. ==Death==