Most importantly, the peace treaty between Vikings' leader, Rollo and France's king, Charles the Simple to end the Vikings' invasion of France led to feudalism, which was established in 911. ... Other possible links on how feudalism started is when local leaders gained followers during the Muslim and Magyar attacks during the 9th and 11th century, or when the Treaty of Verdun in 843 caused Frankish kingdom to divide into 3 kingdoms, which lead to decline of strong rulers. ... Furthermore, following the return of Medici in 1512 forcing him into exile, a diplomat notably known as ...

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• Grade Level: Undergraduate