Ève Curie When he died in 1910, Marie Curie was forced to bring up her daughters herself with the help of governesses. Even though Ève confessed later that as a child she had suffered from a lack of sufficient attention of her mother and that only later, in her teens, she developed a stronger emotional bond to her, Marie took great care for the education and development of interests of both her daughters. Whereas Irène followed in her mother's footsteps and became an eminent scientist (she was awarded the Nobel Prize in Chemistry with her husband Frédéric Joliot-Curie in 1935), Ève showed
Marie Curie a systematic search for additional substances that emit radiation, and by 1898 she discovered that the element thorium was also radioactive. Pierre Curie was increasingly intrigued by her work. By mid-1898 he was so invested in it that he decided to drop his work on crystals and to join her. She was acutely aware of the importance of promptly publishing her discoveries and thus establishing her priority. Had not Becquerel, two years earlier, presented his discovery to the "Académie des Sciences" the day after he made it, credit for the discovery of radioactivity, and even a Nobel Prize, would instead