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Revolution overthrows Austria-Hungarian Emperor
This event was so significant to world history because the Austria-Hungarian emperor lost power due to changes caused by the revolution that was occurring, which also triggered conflict. -
Germany officially unified
This event caused Germany to be a politically and administratively integrated nation state. -
France loses Alsace and Lorraine to Germany
Resentment over this loss was a major cause of the "anti-German" feeling and of the First World War, also for the Second World War when Germany lost it to France. -
Triple Alliance formed
This event was essential to world history being that it was a secret agreement between Germany, Austria-Hungary, and Italy. -
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Russo-Japanese War
This event was so significant in world history due to Japan forcing Russia to abandon its expansionist policy in the Far East, which meant that Japan was the first Asian power in modern times to conquer a European power. -
Triple Entente alliance formed
This occurrence was important to world history being that it connected the Russian Empire, the French Third Republic, and the United Kingdom of Great Britain and Ireland in an understanding with each other. -
Austria-Hungary annexes Bosnia
This upset the fragile balance of power in the Ballans, enraging Serbia ad pan-Slavic nationalists throughout Europe. -
Archduke Franz Ferdinand Assassinated
This event is important because it is widely known to have sparked the outbreak of WW1. -
Austria declares war on Serbia
Occurring one month to the day after the assassination of Archduke Franz Ferdinand, effectively beginning the First World War. -
Ottoman-Germany alliance formed
This event was important to world history due to the alliance being formed to strengthen and modernize the weak Ottoman military and allow Germany to pass into neighboring British colonies safely. -
Schlieffen Plan put into action
This event was important to world history because it was created by the German Chief of Staff Alfred von Schlieffen in 1903 that led to Britain declaring war on Germany on August 4th, 1914. -
Japan declares war on Germany
The event was essential because it redefined the country's relationship with its most important rival, China, and asserted its supremacy in the Far East. -
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Battle of Tannenberg
Important because it was WW1's first major battle on the Eastern front and one of the war's only decisive victories. -
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Battle of Marne
Extremely important since it featured the first use of radio intercept and automotive transport of troops in wartime. -
Russian army out of ammunition
This event is important to world history because Russia already didn't have enough supplies and ammunition to be fully prepared for war, but when they fully ran out, they earned themselves a lot of death for Russian soldiers. -
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Battle of Gallipoli
This battle was an extremely unsuccessful attempt by the allied powers to control the sea route from Europe to Russia during WW1. -
Lusitania sinks
This event is relevant to world history due to the British ocean liner Lusitania being torpedoed without warning by a German submarine, which caused 1,198 people to be drowned, including 128 Americans. -
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Battle of Verdun
This was one of the longest single battle of WW1. The casualties from Verdun and the impact the battle had on the French Army was a primary reason for the British starting the Battle of the Somme in July 1916 in an effort to take German pressure off of the French at Verdun. -
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Battle of Jutland
This was the only major naval surface engagement of WW1. -
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Battle of Somme
This weakened the German army, forced their retreat and encouraged an allied offensive as well as allowed the allies to take land back from the Germans, push their lines further into Europe, and recalibrate military strategies. -
Vladimir Lenin seizes power in Russia
This occurrence was important to world history due to the timing of Lenin's stopping of power, which was in the October phase of the Russian Revolution of 1917 after he had a substantial amount of success of leading Russia. -
Zimmerman Telegraph found
This event was vital to world history for the reason that Arthur Zimmerman had a message that was directed to the German ambassador to Mexico suggesting a Mexican-German alliance in the case of war between the United States and Germany that was published on the front pages of newspapers across America. -
Unrestricted submarine warfare commences
This event was important to world history because Germany returned to this policy after it previously suspended it in response to pressure from the United States and other neutral countries. -
Tsar Nicholas II abdicates
This occurense was crucial to world history due to Tsar Nicholas having to retire from being the ruler of Russia since 1894 because he was forced to by Petrograd insurgents and a provincial government was installed in his place. -
US declares war on Germany
This occurrence led America to have conflict with Germany. -
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Battle of Passchendaele
Became a vivid symbol of the mud, madness and the senseless slaughter of the First World War. -
Bolsheviks emerge as a political group
Crucial because they eventually became the dominant political power of Russia. -
Balfour Declaration
The importance of this is seen in Britain's public acknowledgement and support of the Zionist movement which emerged from its gown G concern surrounding the direction of the First World War. -
October Revolution
This event is crucial to world history for the reason that the Bolshevik party gained control of power in Russia and was the second and last major phase of the Russian Revolution of 1917. -
Fourteen Points proposed
Important because these points were later taken as the basis for pease negotiations at the end of the war. -
Russia signed Treaty of Brest-Litovsk
This event was so vital to world history for the reason that this treaty was signed by the new Bolshevik government of Soviet Russia and the Central Powers (Germany, Austria-Hungary, Bulgaria, and Ottoman Empire) and was what ended Russia's participation in World War I. -
Influenza epidemic
This would eventually kill 675,000 Americans and more than 20 million people around the world, proving to be far deadlier than even the First World War. -
Armistice Signed
Crucial in history becuase this is when fighting in WW1 came to an end. -
Kaiser Wilhelm II abdicates
This was an important occurance because without the emperor, the Germans in turn, had no strong leader. -
Treaty of Versailles signed
This happening had significance in world history for the reason that it concluded World War I. -
Treaty of Saint-Germain
This occurrence was vital to world history due to this treaty being signed by representatives of Austria on one side and the Allied Powers on the other which recorded the breakup of the Hapsburg empire. -
New Economic Policy (NEP)
This is so important to world history because the policy of War Communism brought the national economy to the point of complete breakdown. -
Stalin takes over Russia
This event was crucial to world history because Stalin was able to politically isolate his major enemies, such as arch-rival Leon Trotsky, and had them terminated from government completely. -
Trotsky flees Russia
This occurrence is significant in world history for the reason that Trotsky was banned by Joseph Stalin for his radicalism. -
Germany stops reparation payments to France
WW1 ended over the weekend of this, leading up to Oct. 3 where Germany made the final reparations-related payment for the Great War, 92 years after the country's defeat by the Allies. -
Russia-Germany Pact violates Versailles
This event was crucial to world history being that Russia and Germany violated the peace treaty, the Treaty of Versailles and ended that peace.
