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June 28, 1914
Archduke Franz Ferdinand was assassinated by Serbian nationalist -
July 28, 1914
Austria-Hungary declares war on Serbia, effectively beginning the First World War. -
August 1, 1914
Germany declared war with Russia. -
August 3, 1914
Germany declares war on France, and invades neutral Belgium. -
August 7, 1914
The first British troops land in France. The 120,000 members of the British Army form the British Expeditionary Force. The troops were led by Field Marshal John French. -
August 12, 1914
France and Great Britain declared war on Austria-Hungary. Austria-Hungary invaded Serbia. -
August 23, 1914
The Battle of Mons, was the opening battle of the First World War. -
November 1, 1914
Austria invaded Serbia. The British Navy suffered its worst defeat. -
February 4, 1915
Kaiser Wilhelm announced Germany’s intention to sink all ships sailing under the flags of Britain, Russia or France found within British waters. -
April 24, 1915
The Armenian genocide began -
April 26, 1915
Secret agreement signed in London between Italian Government and the Entente for Italian co-operation in the war and declarations by which Italy adheres to the Pact of London -
May 7, 1915
The British Liner Lusitania is attacked and sunk without warning by a German submarine off the south coast of Ireland. -
July 1, 1916
Thousands of British soldiers began an attack against a German trench line which was supposed to have been destroyed. -
November 21, 1916
The Battle of Bucharest -
January 9, 1917
The Battle of Rafa. The British drive the Ottomans out of Sinai. -
March 3, 1917
The Battle of Nambanje. -
April 6, 1917
The United States declares war on Germany. -
June 25, 1917
The first American Troops land in France. -
August 14, 1917
China declares war on Germany and Austria-Hungary. -
November 5, 1917
The Allies agree to establish a Supreme War Council at Versailles. -
January 8, 1918
Woodrow Wilson outlines his Fourteen Points. -
March 4, 1918
First known case of what will later be called Spanish Flu: Private Albert Gitchell at Camp Funston, Fort Riley, Kansas. -
November- Spain
First Spanish Flu cases in Spain, where reports on the disease are published freely due to the lack of wartime censorship. -
November 11, 1918
Poland proclaimed. -
January 18, 1919
Treaty of Versailles between the Allies and Germany: the Peace Conference opens in Paris. -
June 28, 1919
Treaty of Versailles signed
