# data[].attributes.body
Archduke Franz Ferdinand, heir to the throne of Austro-Hungarian Empire, and his wife are assassinated.

# data[].attributes.body
Emperor Franz Joseph of Austria-Hungary declares war on Serbia.

# data[].attributes.body
The Ottoman Empire signs a secret alliance with Germany agreeing to enter the war once Germany declares war on Russia. They formally enter the war several months later on October 28,1914 when they bomb Russian sea ports. Bulgaria joins the Central Powers on October 15, 1915.

# data[].attributes.body
Germany declares war on neutral Belgium and invades Belgium and Luxembourg as part of the Schlieffen Plan. As a result, Britain declares war on Germany.

# data[].attributes.body
Austria-Hungary declares war on Russia.

# data[].attributes.body
The United States declares neutrality in the war.

# data[].attributes.body
The German army defeats Russia at the Battle of Tannenberg.

# data[].attributes.body
German invasion of France is halted at the First Battle of Marne.

# data[].attributes.body
The Race to the Sea ends when the Germans withdraw at the 1st Battle of Ypres.

# data[].attributes.body
Unofficial Christmas truce is declared by German and Allied soldiers in the trenches along the Western Front.

# data[].attributes.body
The Germans use poison gas at the 2nd Battle of Ypres.

# data[].attributes.body
Armenian Genocide begins.

# data[].attributes.body
Allies begin a nine-month battle for the Turkish peninsula of Gallipoli.

# data[].attributes.body
A German U-boat sinks the Lusitania killing 1,198 civilians, including 128 Americans.

# data[].attributes.body
Italy Joins the Allies.

# data[].attributes.body
British nurse, Edith Cavell, is executed by the Germans.

# data[].attributes.body
At eleven o’clock on this day, war on the Western Front ends as Germany and the Allies sign an Armistice.

# data[].attributes.headline
  February 21st - December 18th, 1916    

# data[].attributes.subject
  February 21st - December 18th, 1916    

# data[].attributes.body
The Battle of Verdun is fought resulting in an estimated one million casualties.

# data[].attributes.body
Woodrow Wilson is re-elected President of the United States.

# data[].attributes.body
British cryptographers decipher a telegram from German Foreign Minister Arthur Zimmerman to the German Minister of Mexico.

# data[].attributes.body
The Germans resume unrestricted submarine warfare.

# data[].attributes.body
Tsar Nicholas II of Russia abdicates.

# data[].attributes.body
The 3rd battle of Ypres, also known as Passchendaele, results in minor gains for the Allies and a total of 700,000 casualties.

# data[].attributes.body
The Balfour Declaration is presented in London.

# data[].attributes.body
President Wilson outlines his Fourteen Points in a speech before Congress

# data[].attributes.body
Treaty of Brest-Litovsk is signed between Russia and Germany.

# data[].attributes.body
President Wilson asks the U.S. Congress for a declaration of war against Germany.

# data[].attributes.body
Germans on the banks of the Marne near Paris are stopped by American forces at Chateau-Thierry.

# data[].attributes.body
Kaiser Wilhelm II of Germany abdicates.

# data[].attributes.body
Emperor Karl of Austria abdicates.

# data[].attributes.body
Germany and Allies sign the Treaty of Versailles. The U.S. Senate later refuses to ratify it.

# data[].attributes.body
The Treaty of Sevres ends the war on the Eastern Front with the Ottoman Empire.