See also: 1666 in science, other events of 1667, 1668 in science and the list of years in science.
Anatomy Robert Hooke demonstrates that the alteration of the blood in the lungs is essential for respiration Jean Denis performs the first blood transfusion from a lamb into a boy Births May 26 - Abraham de Moivre, French mathematician (died 1754) July 27 - Johann Bernoulli, Swiss mathematician (died 1748) Deaths
