declined

Centuries of empirical data reveal a measurable decline in global homicide rates

Centuries of empirical data, validated across cultures and continents, reveal a measurable decline in global homicide rates. This is not a story of a problem solved, but of a long-term trend worth understanding. The data is clear: violence has diminished dramatically over the centuries. This measurable shift in human behavior parallels other encouraging social changes, such as the decline in homophobic attitudes documented in our piece on a *Measurable shift in homophobic attitudes across Western Europe and US*.