an American citizen), and their first language was French, they were familiar with their Polish origin and spoke Polish. In 1911 they visited Poland (the southern part, which was then under Austrian rule). During their visit to Poland, they also rode horses and hiked in the mountains. Youth In 1921, Ève set off on her first journey across the Atlantic Ocean: that spring, she sailed with her sister and mother on board the ship RMS Olympic to New York City. Marie Curie, as a two-time laureate of the Nobel Prize, the discoverer of radium and polonium, was welcomed there with all due ceremony; her daughters were also very popular with American high society. Radiant at parties and joyous, Ève was dubbed by the press "the girl with radium eyes". During the trip Ève and Irène also acted as their mother's "bodyguards" – Marie, usually focused on research work and preferring a simple life, did not always feel comfortable facing the homage paid to her. While in the United States, Marie, Irène and Ève met President Warren G. Harding in Washington, D.C., saw Niagara Falls and went by train to see the Grand Canyon. They returned to Paris in June 1921. Ève, like her sister Irène, graduated from the Collège Sévigné, a non denominational private high school in Paris, where she obtained her baccalaureate in 1925. Meanwhile, she also improved her piano skills and gave her first concert in Paris in 1925. Later, she performed on stage many times, giving concerts in the French capital, in the provinces and in Belgium. After Irène married Frédéric Joliot in 1926, Ève stayed with her mother in Paris, taking care of her and accompanying her on trips throughout France, Italy, Belgium, and Switzerland. In 1932, they also accompanied President of Czechoslovakia, Tomáš Masaryk, on his trip to Spain. Although she loved her mother, Ève had a quite different personality from her (and from her sister Irène). She was not interested in science, preferring the humanities. Unlike her mother, she was always attracted by refined life. Whereas Marie usually wore simple, black dresses, Ève always cared about smart clothes, wore high-heeled shoes and make-up, and loved shining at parties. However, both Ève and Irène nursed their mother with devotion until her death. Marie, ill with aplastic anemia, probably caused by her long-term exposure to radium, died on July 4, 1934. Although now (in 2021) it