Norway castrated gays, mental patients and epileptics from 1934 to 1969 “to prevent sexual crimes,” according to historian Per Haave who has access to the national health archives.

Three hundred seventy men and 44 women had their testicles or ovaries removed by government doctors.

“Among the men … there were many homosexuals,” Haave told Reuters.

He said most of the victims were under age 20. Many of the operations were performed in the late 1940s.