9 / 10
Discovery of insulin
In 1921 a team of medical professionals in Toronto, including Sir Frederick Banting, Charles Best, and JRR Mcleod, discovered insulin. A year later James B Collip purified the substance, and the team went about saving the lives of the kids in their care. To this day, millions of lives have been saved thanks to their discovery and dedication.
+

© Inna Luzan | Shutterstock