Why is 1648, marked by the creation of the Treaties of Westphalia, a seminal year for scholars of international relations?

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1648 marked the creation of the Treaties of Westphalia, which ended the Thirty Years' War in Europe. The treaties established the principle of state sovereignty, marking a significant shift away from the idea of a universal religious authority controlling political affairs. This new emphasis on the sovereignty of individual states laid the groundwork for modern international relations and the development of the nation-state system. Therefore, it is a seminal year for scholars of international relations.

Why Is 1648, Marked by the Creation of the Treaties