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Francis Ferdinand threatened others freedom -
In case of the outbreak of war, Germany would attack France first and then Russia. -
A month after the assassination of Francis Ferdinand and his wife Sophie the Austro-Hungarian government declares war on Serbia. Serbian army won. -
Tsar Nicholas II ordered a general mobilization of the Russian army on 30 July 1914. Two days later, Germany declared war on Russia. -
The Germans succeeded in capturing a large part of the industrial north east of France. Entente won. -
British Empire and French troops landed on the Ottoman-held peninsula in the Dardanelles Straits with disastrous consequences for the Allies. Ottoman Empire won. -
The German submarine (U-boat) U-20 torpedoed and sank the Lusitania. -
Rasputin was assassinated by a group of conservative Russian noblemen. -
A coded message sent to Mexico, proposing a military alliance against the United States. -
The U.S. Senate voted in support of the measure to declare war on Germany. -
The 1918 influenza pandemic was the most severe pandemic in recent history -
Russia recognized the independence of Ukraine, Georgia and Finland; gave up Poland and the Baltic states of Lithuania, Latvia and Estonia to Germany and Austria-Hungary. -
The Second Battle of the Marne was the last major German offensive on the Western Front during the First World War. The allies won. -
The armistice between Germany and the Allies was the first step to ending World War I -
The Treaty of Versailles was signed by Germany and the Allied Nations on June 28, 1919, formally ending World War One.