in combinazioni nuove che siano utili, forse.
It all started in 1931 in Japan. Furukawa Takeji (1891–1940) proposed that there was a link between blood type and personality after working in the administration department of a high school and observing the temperamental differences between applicants.
Furukawa proposed that we humans are simple beings, only requiring two personality types. His report stated that people of blood type A were generally mild tempered and intellectual, while people of blood type B were the opposite, essentially dividing the population into the “good” and the “bad.”