he radioactive material stocked in Paris contributed to the discoveries in the 1930s of the and of what was known as artificial radioactivity.

In the 1930s, the discoveries related to artificial radioactivity were significantly shaped by the work of multiple scientists, most notably Frederick Joliot-Curie and Irène Joliot-Curie. The Joliot-Curies were able to create new radioactive elements by bombarding stable elements with alpha particles, which was a groundbreaking development in the field of nuclear physics.

Their experiments demonstrated that it was possible to produce isotopes of elements that were not naturally radioactive by using artificial means, thus establishing the concept of artificial radioactivity. This work not only advanced scientific understanding at the time but also had lasting implications for areas such as medicine, nuclear energy, and the broader study of atomic structure.

Overall, the contributions of the Joliot-Curies in Paris marked a critical step forward in the understanding and application of radioactivity, opening doors to various technological and medical advancements. The significance of their findings continues to be recognized in present-day research in nuclear science and related fields.