Milutin Milanković (Serbian Cyrillic: Милутин Миланковић) (born in Dalj, Austria-Hungary on 28 May 1879, died Belgrade, Yugoslavia on 12 December 1958), was a Serbian geophysicist and civil engineer, best known for his theory of ice ages, suggesting a relationship between Earth's long-term climate changes and periodic changes in its orbit, now known as Milankovitch cycles. [Read more on Wikipedia]
Josif Pančić (Serbian Cyrillic: Јосиф Панчић; April 17, 1814 – March 8, 1888) was a Serbian botanist. He was a famous lecturer at the Great School in Belgrade and the first president of the Serbian Royal Academy. Pančić is credited for discovering the new species of conifer – the Serbian Spruce. [Read more on Wikipedia]