She was discribed by Tesla as a very intelligent, talented woman, and this can be a genetical substace to his genius, and it would be helping the fact that Serbians are considered the dumbest nation in Europe by many results of various testings. By looking at the origin of the DNA samples in Slovenia and the territory of Croatia have more matches with German and Hungarian samples, then Slavic, so they geneticly don't have much with Serbs and Croatians from Bosnia (except maybe Slavonia and Lika, but you can take it, it isn't much, it is in a state of every land that is ruled by the serbian blood) which are different. I remember the times in the former Yugoslavia when you had all A's and you were Croatian, you couldn't be applied for a job if a serbian was appling for the same thing with hardly passing the classes. After sucking every state in the former Yugoslavia, the Republic of Serbia and Montenegro still have a shit of a BDP. Yes, but defending the land from the Italian invasion in 1918 was impossible without an army of some sort (after the ruling of the Habsburg Moranchy has ended the territory of Croatia and Slovenia had no leading, except maybe the only law-giving body of the state then and some time in the Kingdom of Yugoslavia, which was kind of apsolutistic, the Croatian Sabor in Zagreb made something they would later pay, and right here came the Kingdom of Serbia and here all shit started, damn that day (kind of, don't know how to express my self, but kind of crappy feel). 

 Sorry for the racistic claims, but it is a kind of response to similar posts that i find really entertaining, and if you see the irony in this post, good for you