Ketsueki-Gata Through American Eyes: Examining the Correlation Between Blood Type and Personality
Muni Bondo
A potentially pseudo-scientific belief that blood type influences personality began in 1927 with the publication “The Study of Temperament through Blood Type” by Tokeji Furukawa. The idea was extended in 1971 after Masahiko Nomi published “Understanding Affinity Through Blood Type.” The term Ketsueki-gata became prominent in Japanese society, the term meaning blood type influences personality