I am a Finn and I agree on introversion. In our culture hard working in solitude is respected and showing your feelings is suppressed; both good for classroom study. In sports this culture shows too: we do generally very bad in team sports.
The whole society is based on leveling differences. The week ones drop out and the good ones are held back but on the average everything looks good. It is also very rare to be self-employed. If you want to accomplish something out of ordinary you have to leave the country; think of Linus Torvalds for example.
About history: Finland has been part of Sweden and Russian and we are still been constantly reminded about it. For example, our current president Tarja Halonen refuses answer questions about democracy in Russia. I think the whole country needs a psychotherapy about the Russia issue.
You should think a Finn as passive-aggressive, risk-avoiding, self-loathing, highly educated native with inferiority complex. Those qualities with the lack of courage to speak up makes us the ultimate slave race.