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- In 1839 the Guarentee of Belgium was established
- In 1867 the Treaty of London, establishes Luxembourg's nuetriality
- In 1870 the Fransco-Purssian War began, in which France was beaten
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- In 18721 the German Empire was created
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- In 1883 The Austro-Romanian Alliance was formed
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- In 1888 Whilhem II became Emporer of Germany
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- In 1889 the Franso Alliance was formed
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- In 1902 the Fransco-Italian Agreement established
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- In 1914 the Great Powers already came to a war thanks to Balkan
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- In 1882 the Triple Alliance esablished between Germany, Austria-Hungary, and Italy