Significant Events in Medical History on July 25

Historical Birthdays on July 25

Paul Langerhans (1847)

On July 25, 1847, German pathologist, physiologist, and biologist Paul Langerhans was born. He is renowned for discovering the Islets of Langerhans, specialized pancreatic cells responsible for producing insulin.

Frederick Blackman (1866)

British plant physiologist Frederick Blackman was born on July 25, 1866. He made significant contributions to the study of photosynthesis, the process through which plants convert carbon dioxide into oxygen. Additionally, he formulated Blackman’s law of limiting factors, which identifies the factors that influence the rate of photosynthesis.

Rosalind Franklin (1920)

English chemist and X-ray crystallographer Rosalind Franklin was born on July 25, 1920. She is best known for her pivotal role in the discovery of the double helix structure of DNA, which has had a lasting impact on the field of genetics.