Which blood types are superior?

Von Dungern worked at the Heidelberg Institute for Experimental Cancer Research where he was the director of the scientific section. Ludwik Hirszfeld, the co-discoverer of the heritability of ABO blood groups, was his research assistant from 1907 to 1911. Hirszfeld, in his work Historia (1967), described von Dungern as “a spiritual poet who had to fall in love with a problem in order to be able to work on it … He was a flame burning from within.”

The History of Blood Type Personalities

One of the reasons Japan developed the blood type personality indicator theory was in reaction to a claim from German scientist Emil von Dungern, that Blood type B people were inferior.

In Europe, type A was more common than type B, while in Asia type B was more prevalent. Von Dungren claimed A people are superior to B people. Because Asia had more B people than some parts of Europe, the inference was that Asia was inferior (along with European B’s) A Japanese scholar, Takeji Furukawa opposed that idea and asserted that B persons were active while A persons were passive.

Rh- Blood: Truth and Lies