Nazi persecutee and opponent of racial hygiene: The extraordinary life of the "ethnopathologist" Max Kuczynski (1890-1967).

The pathologist Max Kuczynski (1890-1967) gained recognition for his bacteriological research but is also considered the founder of the so-called ethnopathology. As a "non-Aryan," Kuczynski emigrated from Nazi Germany to Peru, where his elder son was later even to become president. However, the circumstances surrounding the end of Kuczynski's career in Germany are hardly known. This article takes this research gap as an opportunity to reconstruct his life, the circumstances of his emigration, and his work in South America. Numerous archival documents serve as sources. In the mid-1920s, Kuczynski developed "ethnic pathology," a new interdisciplinary approach that offered a counter-concept to the increasingly popular racial hygiene in Germany. But his career in Germany ended even before the Nazis came to power in 1933. He was dismissed from the Charité Pathological Institute in October 1932 at the instigation of its new director, Robert Rössle (1876-1956). Personal and financial reasons played a role, but Kuczynski's rejection of racial hygiene may also have been a decisive factor: Rössle himself turned increasingly to questions of racial hygiene in the Third Reich and used the corpses of Nazi victims for his research. It can be shown that the circumstances of Kuczynski's dismissal were already catalyzed by anti-Semitic and eugenic tendencies, which were to unleash themselves radically in Germany only a few months later - and even caught up with him in Peruvian exile.

From Germany to Venezuela: The two careers of the Jewish-born pathologist Rudolf Jaffé (1885-1975).

The pathologist Rudolf Jaffé (1885-1975) is considered one of the most important specialists of his time - even though he had to flee from the Nazis and attempt a professional restart in South America. The article examines the concrete background of his emigration to South America and the factors that enabled Jaffé to establish pathology as a scientific discipline in Venezuela. Various archival documents and materials from the private archives of Jaffé's descendants serve as sources. These documents are supplemented by relevant secondary literature. Jaffé's career can be divided into four phases: (1) Jaffé's broad education, which qualified him for his later work in Venezuela. (2) Jaffé's professional activity at the Senckenberg Institute of Pathology in Frankfurt. (3) His career peak in Germany as head of the Institute of Pathology in Berlin-Moabit, and finally (4) his forced emigration to Venezuela, where he became the doyen of the field of pathology. It can be shown that Jaffé's great scientific success, even after his emigration, was based on three factors: his exceptional personality, his broad, multifaceted training, and the special conditions in Venezuela.