Viking Age triggered by shortage of wives?
msnbc.msn.com
msnbc.msn.com
:)
(ratio of men vs women is one of the highest in the world due to single child policy)
Single child policy can hardly be the reason for that.
I'm yet to see a convincing argument for why it's unethical.
http://www.google.com/search?q=netherlands+euthanasia+child
280,000 hits.
China was a society of prima genitor, like Europe; boys are high prestige because they carry on your family name. All praise to the eldest son!
Most men in the Middle East can hardly afford a single wife. Only really, really rich men have harems.
Of course the reasons are way more complex.
I'll recommend this excellent article from Fareed Zakaria: The Politics of Rage: Why Do They Hate Us? http://fareedzakaria.com/articles/newsweek/101501_why.html