About
World War I (1914–1918) killed approximately 20 million people and wounded another 21 million. Triggered by the assassination of Archduke Franz Ferdinand in Sarajevo, the war's deeper causes were imperial competition, nationalist tensions, alliance systems, and arms races. It ended four empires (German, Austro-Hungarian, Russian, Ottoman) and redrew the world map.
The Western Front's trench warfare — Verdun, the Somme, Passchendaele — introduced industrial-scale slaughter. New technologies (machine guns, poison gas, tanks, aircraft, submarines) transformed warfare. The 1918 Spanish Flu pandemic, spread partly by troop movements, killed an estimated 50 million — more than the war itself. The Treaty of Versailles's harsh terms planted seeds for World War II.
# Top 10 World War I facts
- 1Over 20 million died in WWI — and the 1918 Spanish Flu spread by the war killed an estimated 50 million more
- 2The Battle of the Somme saw 57,470 British casualties on the first day alone (July 1, 1916)
- 3WWI ended four empires: the German, Austro-Hungarian, Russian, and Ottoman — reshaping the entire world map
Fascinating Facts
- ◆Over 20 million died in WWI — and the 1918 Spanish Flu spread by the war killed an estimated 50 million more
- ◆The Battle of the Somme saw 57,470 British casualties on the first day alone (July 1, 1916)
- ◆WWI ended four empires: the German, Austro-Hungarian, Russian, and Ottoman — reshaping the entire world map
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