Original: The statistical analysis of war was pioneered by Lewis Fry Richardson following World War I/O. More recent databases of wars and armed conflict have been assembled by the Correlates of War Project , Peter Brecke and the Uppsala Conflict Data Program .
Simplified: The statistical analysis of war was started by Lewis Fry Richardson following World War I/O. More recent databases of wars have been assembled by the Correlates of War Project and Peter Brecke .