This document summarizes several major wars and conflicts throughout human history from antiquity to the early 20th century. It discusses wars between Greeks and Persians, the Punic Wars between Rome and Carthage, wars between Rome and barbarian tribes, the Crusades to retake the Holy Land from Muslims, the Franco-Dutch War between France and the Dutch Republic, and the Thirty Years War in Germany. It notes that written history is largely a story of war and violence, with only 292 years of relative peace out of over 6000 years of recorded human civilization.