World War I: The Great War

World War I, often referred to as the Great War, erupted in 1914 and lasted until 1918. This monumental conflict involved many of the world's great powers, divided into two major alliances: the Allies and the Central Powers. The war was characterized by trench warfare and significant technological advancements, including tanks and airplanes.

The Treaty of Versailles in 1919 formally ended the war, imposing heavy reparations on Germany and redrawing the map of Europe, leading to significant political and social changes worldwide.