Planck in his formula E = hf. This was measured by experimenters long before Planck. Einstein's paper on the photoelectric effect explained the observations, Planck later quantified it. Not sure who...
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....
Platinum was first mentioned by the Italian Julius Caesar Scaliger in 1557; in 1748 the Spanish Antonio de Ulloa published a book containing a detailed description of platinum.