Major Causes and Events of World War I

World wide web iconImage of Gabro Princip just after he assassinated Archduke Ferdinand.Have you ever been part of a conflict that started out as a small disagreement between two people and expanded to become a large disagreement between a group of people? Were there small events along the way that helped to escalate the situation? How does one event between two countries evolve into full-scale war with many nations lined up against one another?