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6500 BCE
Trephination
The general concept of Trephination is to create a hole in the skull and leave it open, thereby increasing the volume of the blood flowing to the brain. -
Period: to
Tuskegee Syphilis Study
The U.S. Public Health department experimented on black impoverished shareholders with syphilis. They didn't inform them they had syphilis nor did they provide any type of counseling or treatment. -
Period: to
Nazi Concentration Camp Experiments
Nazis experimented on those not born of pure Aryan lineage. Such experiments involved sleep deprivation, starvation, and unnecessary surgeries without anesthesia.