The History of Violence in The World

This is an absolute must read of Harvard Professor, Steve Pinker's work in this area. The history of world violence and mayhem does not trend, according to Pinker, as many of us (including me) would think.  Over tim, the world may be getting more peaceful and civil, not less. And Pinker has what he believes is empirical data to back it up.

http://edge.org/conversation/mc2011-history-violence-pinker