World War I, [b] or the First World War (28 July 1914 – 11 November 1918), also known as The Great War, was a global conflict between two coalitions: the Allies (or Entente) and the Central Powers. …

May 5, 2026 · World War I (1914–18) was an international conflict that embroiled most of the nations of Europe along with Russia, the U.S., the Middle East, and other regions. It led to the fall of four great …

Oct 29, 2009 · World War I, also known as the Great War, started in 1914 after the assassination of Archduke Franz Ferdinand of Austria. His murder escalated into a war across Europe that lasted until …

Library of Congress image In the summer of 1914, the assassination of Archduke Franz Ferdinand, heir to the Austro-Hungarian Empire, ignited a continental war between the Central Powers of Germany, …

The Library of Congress is uniquely prepared to tell the story of the United States' participation in the Great War. The Library’s unparalleled collections include posters, recordings, newspapers, sheet …

WWI Essentials Learn the essentials about World War I and understand the key events and impacts of the war.

Experience the history of World War I with this interactive timeline. View maps, watch videos, see photos and read about the events that shaped the war. Open the interactive timeline […]

Six Causes of World War I The First World War began in the summer of 1914, shortly after the assassination of Austria’s Archduke, Franz Ferdinand, and lasted more than four years, ending in …

The First World War was the first truly global conflict. From 1914 to 1918 fighting took place across several continents, at sea and, for the first time, in the air. This was war on an unprecedented scale, …

World War One began almost by accident and ended just as strangely. It was the first truly global conflict and saw death on an industrial scale.