He was born in Warsaw, in what was then the Zarato of Poland (territory administered by the Russian Empire). He studied clandestinely at the "floating University" in Warsaw and began his scientific training in the city. In 1891, at the age of 24, he followed his older sister Bronisława Dłuska to Paris, where he completed his studies and carried out his most outstanding scientific work. He shared the Nobel Prize in Physics of 1903 with his husband Pierre Curie and the physicist Henri Becquerel. Years later, he won the 1911 Nobel Prize in Chemistry alone. Although he received French citizenship and supported his new homeland, he never lost his Polish identity: he taught his daughters his mother tongue and took them to his visits to Poland. 6 He named the first chemical element he discovered, the Polonius, as his country of origin