Has there ever been a time when there was no war among humans?
Has there ever been a period in history in which war didn't exist?
Why isn't the Seven Years' War considered the first World War? When did the first world war happen? What was the Hundred Years War? How has the nature of war changed in the last 50 years? Why is the Seven Years War not considered a world war? When and how did WWII start and end? Why was the Thirty Years' War fought? What was The Hundred Years War and who fought in it? How and when did WWII start and end? When did World War One start? When and how did World War 1 and 2 occur? What was the significance of the Hundred Years War? How did it start? What was thirty years war fought over? When did the World War end? What's the longest war that has ever been fought in the history of the world? When and how did WWII end? Has the third world war started? What was World War II? Why did world war happen? How, why and when did World War 1 start? Alternate Histories (Hypothetical Historical Scenarios): How different would the world be if World War I and World War II had not happened? What started the first world war? What were the causes of the First World War? Why aren’t the Seven Years War and Napoleonic Wars called World War 1 and World War 2, respectively? When did world war 2 end? When 2nd world war came to end? Why were wars so common during the Middle Ages? What year did World War I start? When did warfare stop being like the Napoleonic and Civil wars and more like World War I? Why did the U.S. become involved in World War II?