Today In Medical History – July 21

(1810) French chemist and physicist Henri Victor Regnault is born. He designed sensitive thermometers, and calorimeters.
(1952) United States Senator from Wyoming John Barrasso is born. Along with his political career, he was also an orthopedic doctor.
(1947) New York-based physician Nicholas Gonzalez is born. He is known for developing the (later rejected) Gonzalez regimen, an alternative cancer treatment.