Assassination of Archduke Franz Ferdinand
On June 28, 1914, Archduke Franz Ferdinand of Austria was assassinated in Sarajevo, sparking the beginning of the 1ère guerre mondiale.
1914
1914
Austria-Hungary Declares War on Serbia
Following the assassination, Austria-Hungary declared war on Serbia on July 28, 1914, leading to a chain reaction of alliances entering the conflict.
1914
Germany Invades Belgium
On August 4, 1914, Germany invaded Belgium, which led to Britain declaring war on Germany, marking a significant escalation in the 1ère guerre mondiale.
1915
Gallipoli Campaign
The Gallipoli Campaign, a significant battle during the 1ère guerre mondiale, began in April 1915 as the Allies attempted to secure a sea route to Russia.
1915
Italy Enters the War
Italy joined the Allies and declared war on Austria-Hungary on May 23, 1915, further expanding the scope of the 1ère guerre mondiale.
1916
Battle of Verdun
The Battle of Verdun, one of the longest and costliest battles of the 1ère guerre mondiale, began in February 1916 and lasted until December of the same year.
1916
Battle of the Somme
The Battle of the Somme, another major battle of the 1ère guerre mondiale, commenced on July 1, 1916, and became known for its heavy casualties.
1917
United States Enters the War
On April 6, 1917, the United States declared war on Germany, marking a significant turning point in the 1ère guerre mondiale.
1917
Russian Revolution
The Russian Revolution in 1917 led to Russia's withdrawal from the 1ère guerre mondiale, significantly impacting the Eastern Front.
1918
Treaty of Brest-Litovsk
The Treaty of Brest-Litovsk was signed on March 3, 1918, between Soviet Russia and the Central Powers, officially ending Russia's involvement in the 1ère guerre mondiale.
1918
Armistice of Compiègne
The Armistice of Compiègne was signed on November 11, 1918, marking the end of fighting in the 1ère guerre mondiale.
1919
Treaty of Versailles
The Treaty of Versailles was signed on June 28, 1919, formally ending the 1ère guerre mondiale and imposing heavy reparations on Germany.
1919
League of Nations Established
The League of Nations was established in 1919 as part of the Treaty of Versailles to promote peace and prevent future conflicts following the 1ère guerre mondiale.
1920
Treaty of Sèvres
The Treaty of Sèvres was signed in 1920, dismantling the Ottoman Empire and redrawing the map of the Middle East post-1ère guerre mondiale.
1923
Treaty of Lausanne
The Treaty of Lausanne, signed in 1923, replaced the Treaty of Sèvres and established the boundaries of modern Turkey after the 1ère guerre mondiale.
