Homicide rates are falling in Europe …
It's not just interstate violence that's declining. As research from criminologist Manuel Eisner shows, homicide in European countries has been on the decline for centuries. Eisner estimates that in the 1200s and 1300s, Europe had an average homicide rate of about 32 per 100,000. By the 1900s, that rate had fallen to about 1.4 per 100,000.