I would bet that if you did this same things with many history books, similar words would come up, but I do not think that it is a fair summary.

It would be more interesting to see the most searched Google queries coming from these countries (assuming that many use Google). Finland is Ilta Sanomat (The Evening News), for example: http://www.google.com/zeitgeist/2012/#the-world

Unfortunately, Antarctica is not represented in Google Zeitgeist, nor are many others, but perhaps you could contact Google for that data.