What was curie's discovery and when?

Marie Curie's groundbreaking discoveries include the identification of the radioactive elements polonium and radium in 1898. Her work on radioactivity, a term she coined, laid the foundation for advancements in both physics and medicine. Curie’s research demonstrated the properties of radioactive materials and their potential applications, significantly impacting the fields of science and healthcare. She was awarded the Nobel Prize in Physics in 1903 and later the Nobel Prize in Chemistry in 1911 for her contributions.