^ Including 2,000,000 German soldiers, at least 1,000,000 Austro-Hungarians, 800,000 Ottoman troops[2] ^ Often abbreviated as WWI or WW1 ^ Only the Triple Alliance was a formal "alliance"; the …

Jan 12, 2000 · 1914–1918 Quick Summary Ask the Chatbot Also known as: First World War, Great War, WWI

Oct 29, 2009 · WWI was one of the deadliest conflicts in human history, with total casualties estimated at over 16 million.

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, …

World War I began in June of 1914, and is considered to have five major causes that led to the outbreak of the war. These five causes include the four long-term causes (militarism, alliances, imperialism …

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

Marines battling during the Meuse-Argonne Offensive, 1918. (USMC) The war fought between July 28, 1914, and November 11, 1918, was known at the time as the Great War, the War to End War, and …

Nov 30, 2025 · World War I started with the shot heard around the world: the assassination of Archduke Franz Ferdinand of Austria on July 28, 1914, in Sarajevo. By 1918, more than 9 million people had …

Explore the comprehensive, peer-reviewed "1914-1918-online" encyclopedia. Access 1,600+ articles on WWI from global experts.

World War I (WWI or WW1), also called the First World War, or the Great War, began on 28 July 1914 and lasted until 11 November 1918. It was a global conflict and lasted exactly 4 years, 3 months and …