Simplify the following text for a Grade 10 native English-speaking person.
Original: The statistical analysis of war was pioneered by Lewis Fry Richardson following World War I. 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. More recent databases of wars have been assembled by the Correlates of War Project and Peter Brecke .