Yes it is, because the map says “country” not “nationality”.

I’ll be honest, I stole this from R*ddit. I don’t know why OOP did that.

when there was no such country when he was born?

Of course there was, Croatia existed as part of the Austro-Hungarian empire and was allowed to maintain a level of autonomy and self-rule, kept their own noblemen (reward for bending the knee to A-H emperor) and used Croatian as the official language in the country and it was taught in schools (court language was German and by the 18th century Croatian language was also used for mass, iirc, there was a bit of a kerfuffle over that, mass was traditionally in Latin, like everywhere else, then a priest had the wild idea that mass should be in a language that people can understand). Croatia as a political entity has existed since 925 CE or so.

Don’t confuse the current NATO-occupied and EU-subjugated region of Croatia with the historical entity. That said, Tesla was a Serb born in Croatia. Croatians relinquished the right to call Tesla Croatian when the Croatian Army during the war in the 90s destroyed Tesla’s home village and graveyard where his parents were buried.

edit: hard to tell whom I pissed off, an ustasha for mentioning Cro warcrimes and saying Tesla wasn’t Croatian, or a chetnik for merely mentioning Croatia as something that exists…