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A conflict between the Ottoman Empire and the Eastern Orthodox coalition led by the Russian Empire and composed of several Balkan countries.
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A war in Crimea between Russia and a group of nations including England, France, Turkey, and Sardinia.
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The political and social movement that combined different states of the Italian peninsula into the single state of the Kingdom of Italy in the 19th century.
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A socialistic government that briefly ruled Paris. Though elected as the city council, the Commune eventually declared its own authority to govern all of France.
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Unarmed demonstrators marching to present a petition to Tsar Nicholas II were fired upon by soldiers of the Imperial Guard when approaching the city center and the Winter Palace from several gathering points.
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He was shot dead in Sarajevo by a group of six assasins. The political objective of the assassination was to break off Austria-Hungary's south-Slav provinces so they could be combined into a Greater Serbia or a Yugoslavia.
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It was a proposal from Germany for Mexico to join the Central Powers in the event of the United States entering World War I. The proposal was intercepted and decoded by British intelligence. Revelation of the contents outraged American public opinion and helped generate support for the United States declaration of war on Germany.
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Forming of the Union of Soviet Socialist Republics.
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Most devastating stock market crash in history.
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An invasion of Poland by Germany, the Soviet Union, and a small Slovak contingent that marked the beginning of World War II in Europe.
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The day on which the Allied forces invaded France during World War II
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An explosion and fire released large quantities of radioactive particles into the atmosphere which spread over much of the western USSR and Europe.
