-
Archduke Franz Ferdinand Assassination
Archduke Ferdinand was inspecting the Austro-Hungarian army with his wife Sophia. Both had already escaped death once but were shot by Gavrilo Princip. Gavrilo was a member of the Black Hand, a Serbian nationalist group that wanted to liberate Slavic people in the Austrian-Empire. Sarajevo was the city Ferdinand and Sophia were killed in. -
Austria-Hungary declares war on Serbia
After the assassination of Archduke Franz Ferdinand and his wife Austria-Hungary gave Serbia an ultimatum. The ultimatum demanded that Serbia formally and publicly condemn the "dangerous propaganda" against Austria-Hungary. Serbia rejected the ultimatum and Austria-Hungary declared war. -
First Battle of the Marne
This battle was offensive from the French army and British Expeditionary Force against advancing German forces. Allied forces halt German advance into France. 500,000 were killed or wounded. -
Poison gas used
Poison gas was used in both sides of the war but France used it first in the war. There were at least four main gasses. It was used along the western front killing 91,000 soldiers until they had gas masks. -
Gallipoli battle
The Gallipoli battle was fought for the land in between the Ottoman Empire and the rest of Europe. The Gallipoli campaign was a military campaign in the First World War that took place on the Gallipoli peninsula. Around 250,000 casualties. A Central Power victory. -
Somme battle
It was a battle of the First World War fought by the armies of the British Empire and the French Third Republic against the German Empire. An Allied Victory. The aim was to relieve the French army fighting at Verdun and to weaken the German army. Over one million dead on all sides. -
Unrestricted U-boat
United States made sure Germany wouldn't have submarine warfare. Lusitania sank beforehand but Germany resumed submarine warfare. This resume was unrestricted. -
USA joins WW1
There were multiple reasons why the US entered the war. The unrestricted U-boat was going, the lusitania sinking, the zimmerman transcript, etc. America was on the fence staying neutral because many Americans were descendants to both sides. People didn't want to go into a war on another continent, it was so far away. -
Treaty of Brest-Litovsk
Russia and Germany signed this treaty. Russia signed this peace treaty to stop participating in the war. Russia gave up Ukraine, Polish and Baltic territories, and Finland. -
Armistice signed
The armistice that ended WW1 was signed by France, United States, Germany, Italy, and Great Britain. It placed blame on Germany and demanded reparations.