Significant Events in Medical History on October 31

Significant Events on October 31

Birth of Paolo Mantegazza (1831)

On October 31, 1831, Italian neurologist, physiologist, and anthropologist Paolo Mantegazza was born. He is renowned for his pioneering experiments with cocaine and his exploration of its effects on the human psyche.

Birth of Adolf von Baeyer (1835)

On this day in 1835, German chemist Adolf von Baeyer was born. He is celebrated for his synthesis of indigo and his research on uric acid derivatives.

Global Population Milestone (2011)

On October 31, 2011, the global human population reached seven billion. The United Nations now commemorates this date as Seven Billion Day.