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Assassination of Archduke Ferdinand
On June 28, 1914, Archduke Franz Ferdinand of Austria-Hungary was assassinated in Sarajevo, Bosnia. This event, perpetrated by Gavrilo Princip, led Austria-Hungary to declare war on Serbia, sparking the outbreak of World War I. The assassination is considered a major catalyst for the conflict. -
Austria-Hungary declares war on Serbia
On July 28, 1914, Austria-Hungary declared war on Serbia, followed by World War I. This crucial event involved Austria-Hungary and Serbia and occurred after the assassination of Archduke Franz Ferdinand. The declaration of war led to a conflict that involved Europe. -
German troops enter Belgium
On August 4, 1914, German troops entered Belgium, violating its neutrality during World War I. This event involved Germany and Belgium and occurred as part of the initial stages of the war. The German invasion of Belgium impulsed Britain to enter the conflict and contributed to the escalation of hostilities in Europe -
Italy declares war on Austria-Hungary
On May 23, 1915, Italy declared war on Austria-Hungary, entering World War I. This significant event involved Italy and Austria-Hungary and took place in the middle of the conflict in Europe. Italy's declaration of war changed the balance of power in the region. -
United States declares war on Germany
On April 6, 1917, the United States declared war on Germany, joining World War I. This event involved the United States and Germany and took place in response to German submarine attacks on American ships, altering the course of the war. -
Bolshevik storm the Winter Palace
On October 25, 1917, Bolshevik forces stormed the Winter Palace in Petrograd, Russia. This event involved the Bolsheviks, led by Vladimir Lenin, and the Russian Provisional Government. It marked the culmination of the October Revolution, leading to the overthrow of the Provisional Government and the establishment of Bolshevik control, ultimately leading to the formation of the Soviet Union. -
Russia signs armistice with Germany
On December 15, 1917, Russia signed an armistice with Germany, ending its participation in World War I. This agreement involved Russia and Germany and occurred in Brest-Litovsk, Belarus. The armistice allowed Russia to focus on its internal affairs, leading to the signing of the Treaty of Brest-Litovsk in March 1918. -
Russia signs the Treaty of Brest-Litovsk
On March 3, 1918, Russia signed the Treaty of Brest-Litovsk with Germany and its allies, ending its involvement in World War I. This event involved Russia and the Central Powers and occurred in Brest-Litovsk, Belarus. It marked Russia's exit from the war and led to significant territorial losses for the country. -
German Armistice
On November 11, 1918, Germany signed the Armistice of Compiègne, ending World War I. This event involved Germany and the Allied Powers and took place in Compiègne, France. The armistice marked the cessation of hostilities on the Western Front and led to the eventual signing of the Treaty of Versailles, officially ending the war. -
Treaty of Versailles signed
The Treaty of Versailles was signed on June 28, 1919, concluding World War I. This historic event involved the Allied Powers and Germany and took place at the Palace of Versailles in France. It significantly reshaped Europe's political landscape and imposed penalties on Germany.