Carolyn Ramsey, who is guest blogging at the Volokh Conspiracy shares her research on Intimate Homicides--here is a sample:

Lack of attention to non-lethal intimate violence may have been ‘the normal state of affairs’ throughout most of American history. Prior to the 1980s, only the colonial era (especially 1640 to 1680) and the late Victorian era (especially 1870 to 1890) witnessed sustained efforts to curb wife-beating and ‘unnatural severity’ toward children. However, scholars have overstated the level of public apathy toward men’s homicidal aggression against women. Leading criminal law casebooks, numerous law review articles, and books by influential legal scholars and historians repeat the erroneous claim that, in the past, the legal doctrines of self-defense and provocation endorsed men’s brutality, whereas women were severely punished for perpetrating intimate violence.

In fact, the converse was true. Data culled from dusty criminal case files in New York and Colorado demonstrates that, in both the eastern and western United States, men accused of killing their intimates often received stern punishment, while women charged with similar crimes were treated with leniency . . .

It is quite an eye opener--go take a look.