Of course, pedantry isn't easy: I was also anachronistic by mentioning “Austro-Hungarian” which also didn't exist at the time Tesla was born, but at least I've quoted Wikipedia correctly. Wikipedia must be right, it was just Austrian Empire in 1856 as Tesla was born:

https://en.wikipedia.org/wiki/Austria-Hungary

Austro-Hungarian Empire came into existence in 1867, 11 years later.