The significant global event that took place between 1914 and 1918 was World War I, often referred to as the Great War. This conflict involved many of the world's great powers, divided into two major alliances: the Allies and the Central Powers. The war was triggered by political tensions, alliances, and the assassination of Archduke Franz Ferdinand of Austria-Hungary. It resulted in unprecedented levels of destruction and loss of life. The war also led to major social changes and set the stage for significant political upheaval, including the rise of revolutions and the establishment of new nations.