In the extensive literature on the discovery of the concept of the circulation of the blood appear many claims that various men other than William Harvey (1578-1657) were the true discoverers. Bayon' discusses the case for the following six: Andrea Cesalpino (1524-1603), Realdo Colombo (1510-59), Helvicus Dietericus (1601-55), Galen (131-201), Paolo Sarpi (1552-1623), and Walter Warren (d. 1640...