William Harvey (27 nov 1568 ano – 27 nov 1657 ano)
Descrição:
 identified movement of blood around the body as closed circuit with heart as coordinated pump.
also described role of arteries carrying blood away from the heart and veins carrying blood to the heart & the importance of valves 
Adicionado na linha do tempo:
Data:
27 nov 1568 ano
27 nov 1657 ano
 ~ 89 years