What did leucippus discovered?

I thought Marie curie had something to do with it because she died from lukimeia which was caused from her being exposed to it :)

In Sweden, by Carl Wilhelm Scheele, in 1772.

Lead is known from prehistoric times.

Fredrich Ernst Dorn 1898 or 1900 (Germany)

Einsteinium was discovered in December 1952 at Berkeley Laboratories, University of California, USA by this group of researchers: Albert Ghiorso, Stanley G. Thompson, Gary H. Higgins, Glenn T....