(1509) Spanish theologian, physician and cartographer Michael Servetus is born. He was the first European who correctly described pulmonary circulation, the flow of blood from the heart to the lungs, and back.
(1898) Soviet agrobiologist Trofim Lysenko is born. His research focused on wheat and how to improve its crop yields.
(1920) British biochemist Peter Dennis Mitchell is born. He won the 1978 Nobel Prize in Chemistry for his discovery of the chemiosmotic mechanism for the synthesis of ATP.
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