Agreed. One more factual error is mentioning Tesla as a Croatian immigrant, but actually he was born in then Austrian Empire (which today is Croatia). His parents were Serbian.
http://en.wikipedia.org/wiki/Nikola_Tesla
Whether Tesla was Serbian or Croatian is one of the most controversial topics on Wikipedia[1]. As is typical for Wikipedia he has been added and removed from the list of famous Croats a number of time[2]. I don't think that can be classed as a factual error
