Marie Curie (1867–1934): Marie Curie was a revolutionary physicist and chemist who conducted research on radioactivity, a term she herself coined. Born in Poland, Curie’s extraordinary work led to the discovery of the radioactive elements polonium and radium. Her groundbreaking studies on radioactivity investigations into the spontaneous emission of radiation by certain substances contributed to the development of X-rays and cancer treatment. Curie was the first woman to win a Nobel Prize and she remains the only person to have won the prestigious award in two different scientific fields—Physics and Chemistry. Despite facing numerous professional obstacles because of her gender, Curie’s relentless dedication to scientific discovery left a legacy in both the scientific community.