historyOur World in Datamedieval and early modern period · Europe
Homicide rates in Europe have fallen dramatically over the centuries
Historical records and court archives show that homicide rates in medieval and early modern Europe were many times higher than today, often by a factor of ten or more in some regions. Researchers attribute the long decline to the growth of state institutions, police and courts, and to shifts in social norms that discouraged personal violence and feuding. Interpersonal disputes that once ended in killing were increasingly settled through legal channels.
The long decline in violence undercuts the assumption that the past was simply more peaceful or that modern life is uniquely dangerous. It also suggests that how societies organise justice and trust can change deep patterns of human behaviour.
background
Homicide is an act in which a person causes the death of another person. A homicide requires only a volitional act, or an omission, that causes the death of another, and thus a homicide may result from accidental, reckless, or negligent acts even if there is no intent to cause harm.
Homicides can be divided into many overlapping legal categories, such as murder, manslaughter, justifiable homicide, assassination, killing in war (either following the laws of war or as a war crime), euthanasia, and capital punishment, depending on the circumstances of the death. These different types of homicides are often treated very differently in human societies; some are considered crimes, while others are permitted or even ordered by the legal system.
From Wikipedia: Homicide (CC BY-SA 4.0) ↗