This Day in History: 1921-07-27

(July 27, 1921)
Researchers at the University of Toronto, led by biochemist Frederick Banting, have demonstrated that the hormone insulin is responsible for controlling blood sugar levels in humans.
(July 27, 1921)
Researchers at the University of Toronto, led by biochemist Frederick Banting, have demonstrated that the hormone insulin is responsible for controlling blood sugar levels in humans.