Earlier quoted context omitted.
In fact, born in the territories that are currently inside of the borders of the country now called Croatia which at that time didn’t exist as the independent country, especially not there. As far as I understand, he was born in the “Military Frontier” lands of Austro-Hungarian monarchy (Wikipedia: “Born 10 July 1856 Smiljan, Austrian Empire”), and went to Polytechnic school in Graz, today Austria: https://teslaunive…
Even if Croatia did not exist at the time of Tesla's birth, it does not change the fact that he was not born in Serbia.
However if you’d actually want to visit Tesla’s birthplace, you would need to buy a ticket to Croatia. The place is in Croatia now.
Ethnically Tesla was a Serb, his birthplace was then Austrian Military Frontier and now in Croatia, that’s the background to different attempts of ignoring the history.