Age and sex patterns in serious violent offending, however, have changed very little over several centuries.

From Long-Term Historical Trends in Violent Crime by Manuel Eisner.  Dated (2003) but interesting.  From the Abstract:

Research on the history of crime from the thirteenth century until the end of the twentieth has burgeoned and has greatly increased understanding of historical trends in crime and crime control. Serious interpersonal violence decreased remarkably in Europe between the mid-sixteenth and the early twentieth centuries. Different long-term trajectories in the decline of homicide can be distinguished between various European regions. Age and sex patterns in serious violent offending, however, have changed very little over several centuries. The long-term decline in homicide rates seems to go along with a disproportionate decline in elite homicide and a drop in male-to-male conflicts in public space. A range of theoretical explanations for the longterm decline have been offered, including the effects of the civilizing process, strengthening state powers, the Protestant Reformation, and modern individualism, but most theorizing has been post hoc.