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1914 june28
On July 28, 1914, one month to the day after Archduke Franz Ferdinand of Austria and his wife were killed by a Serbian nationalist in Sarajevo, Austria-Hungary declares war on Serbia, effectively beginning the First World War. -
july 28 1914
The First World War began on this day in 1914, a month to the day after the assassination of Franz Ferdinand, heir to the Austro-Hungarian throne, triggered a series of diplomatic maneuverings among European powers. -
August 1, 1914
August 1, 1914 - Germany declares war on Russia. France and Belgium begin full mobilization. August 3, 1914 - Germany declares war on France, and invades neutral Belgium. Britain then sends an ultimatum, rejected by the Germans, to withdraw from Belgium. -
August 3, 1914
August 3, 1914 - Germany declares war on France, and invades neutral Belgium. Britain then sends an ultimatum, rejected by the Germans, to withdraw from Belgium. -
August 3, 1914
Germany declares war on France, and invades neutral Belgium -
August 7 1914
The first British troops land in France. -
August 12 1914
Great Britain and France declare war on Austria-Hungary. Serbia is invaded by Austria-Hungary. -
August 23 1914
in their first confrontation on European soil since the Battle of Waterloo in 1815, -
november 1 1914
the Ottoman Empire officially entered World War One after Russia declared war on the Empire for bombarding its Black Sea ports -
febuary 4 1915
Poison gas is used for the first time in the war as Germans on the Eastern Front attack Russian positions west of Warsaw. ... February 4, 1915 - Germany declares the waters surrounding British Isles to be a war zone in which ships can be sunk without warning. -
april 24 1915
the Armenian genocide began. That day, the Turkish government arrested and executed several hundred Armenian intellectuals. After that, ordinary Armenians were turned out of their homes and sent on death marches through the Mesopotamian desert without food or water. -
april 26 1915
after receiving the promise of significant territorial gains, Italy signs the Treaty of London, committing itself to enter World War I on the side of the Allies -
may 7 1915
On the afternoon of May 7, 1915, the British ocean liner Lusitania is torpedoed without warning by a German submarine off the south coast of Ireland. Within 20 minutes, the vessel sank into the Celtic Sea. -
july 1 1916
The first day of the Battle of the Somme was the worst day in the history of the British Army. At 7:30am on 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
Battle of Bucharest – The Central Powers completed their cross of the Danube River at Sistova and occupied the regional capital of Craiova, Romania.
Hospital ship HMHS Britannic, designed as the third Olympic-class ocean liner for White Star Line, sank in the Kea Channel of the Aegean Sea after hitting a mine, with 30 lives lost. At 48,158 gross register tons, she was the largest ship lost during the war.
