The First World War, also known as World War I or the Great War, began on July 28, 1914, and ended on November 11, 1918.
Key Dates:
- The war started when Austria-Hungary declared war on Serbia on July 28, 1914, following the assassination of Archduke Franz Ferdinand on June 28, 1914.
- The war ended with the armistice on November 11, 1918, a day now commemorated as Remembrance Day.
The conflict involved major world powers divided into two coalitions: the Allies and the Central Powers.