On 14 April 1898, the Curies optimistically weighed out a 100-gram sample of pitchblende and ground it with a pestle and mortar. They did not realize at the time that what they were searching for was present in such minute quantities that they would eventually have to process tons of the ore.
In May 1898, Nadya joined him in exile, having been arrested in August 1896 for organising a strike. She was initially posted to Ufa, but persuaded the authorities to move her to Shushenskoye, claiming that she and Lenin were engaged; they married in a church on 10 July 1898.
The 1898 New York state election was held on November 8, 1898, to elect the Governor, the Lieutenant Governor, the Secretary of State, the State Comptroller, the Attorney General, the State Treasurer and the State Engineer, as well as all members of the New York State Assembly and the New York State Senate.
On 2 December 1898, Churchill embarked for India to settle his military business and complete his resignation from the 4th Hussars. He spent a lot of his time there playing polo, the only ball sport in which he was ever interested.
On 26 December 1898, the Curies announced the existence of a second element, which they named "radium", from the Latin word for "ray". In the course of their research, they also coined the word "radioactivity".