The first human blood transfusion is administered …
Years: 1667 - 1667
June
The first human blood transfusion is administered by Jean-Baptiste Denys, the personal physician to King Louis XIV, when on June 15, 1667, he transfuses nine ounces of lamb's blood to a fifteen-year old boy, bled too many times to count by other doctors because of a fever; he partially recovers, then dies.
