when was the first world war

The First World War began on 28 July 1914 and ended on 11 November 1918.

Quick Scoop

• The conflict is also known as World War I or the Great War.

• It started when Austria‑Hungary declared war on Serbia on 28 July 1914, after the assassination of Archduke Franz Ferdinand.

• Over the following days and weeks, major European powers joined in, turning a regional crisis into a global war.

• The war lasted a little over four years, from 28 July 1914 to the armistice on 11 November 1918.

In short: when people ask “when was the first world war?”, they are usually referring to the period 1914–1918, specifically from 28 July 1914 to 11 November 1918.

TL;DR: The First World War (World War I) was fought from 28 July 1914 to 11 November 1918.

Information gathered from public forums or data available on the internet and portrayed here.