^ 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.

Jan 12, 2026 · The First World War (1914-18) was the first global conflict, the first mechanised conflict, and the first to involve civilians far from the fighting front. In this gallery of 50 images, we explore the...

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 …

May 13, 2025 · World War I was sparked by the assassination of Archduke Franz Ferdinand in 1914. Find out what happened after that event in this WWI timeline.

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, …

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

U.S. Entry into World War I, 1917 On April 2, 1917, President Woodrow Wilson went before a joint session of Congress to request a declaration of war against Germany. Wilson cited Germany’s …

Exhibition Echoes of the Great War: American Experiences of WWI Explore how Americans experienced the upheaval of world war—at home and abroad.