What ended the Thirty Years' War?

What ended the Thirty Years' War?

• A. Edict of Worms (1521).
• B. Peace of Augsburg (1555).
• C. Treaty of Westphalia (1648).
• D. Treaty of Tordesillas.

Answer: (C)

Ending the conflict came with the Treaty of Westphalia in 1648. After decades of brutal fighting across the Holy Roman Empire, these agreements did more than terminate the war: they reshaped how Europe organized power. Westphalia established a system in which states regard each other as sovereign actors with limited external interference, laying the groundwork for modern international diplomacy and the idea that states should negotiate their affairs rather than be dominated by a single ruler or empire. It also broadened the religious settlement: Calvinism was recognized alongside Catholicism and Lutheranism, and rulers could determine the official faith in their territories, signaling a move toward coexistence through negotiated arrangements rather than coercion. Other events don’t fit the ending of this war. The Edict of Worms was an early move against Martin Luther, not a settlement that concluded the conflict. The Peace of Augsburg settled earlier religious tensions within the empire but did not resolve the later, broader war. The Treaty of Tordesillas divided colonial lands between Spain and Portugal and has no connection to the Thirty Years’ War.

Ending the conflict came with the Treaty of Westphalia in 1648. After decades of brutal fighting across the Holy Roman Empire, these agreements did more than terminate the war: they reshaped how Europe organized power. Westphalia established a system in which states regard each other as sovereign actors with limited external interference, laying the groundwork for modern international diplomacy and the idea that states should negotiate their affairs rather than be dominated by a single ruler or empire. It also broadened the religious settlement: Calvinism was recognized alongside Catholicism and Lutheranism, and rulers could determine the official faith in their territories, signaling a move toward coexistence through negotiated arrangements rather than coercion.

Other events don’t fit the ending of this war. The Edict of Worms was an early move against Martin Luther, not a settlement that concluded the conflict. The Peace of Augsburg settled earlier religious tensions within the empire but did not resolve the later, broader war. The Treaty of Tordesillas divided colonial lands between Spain and Portugal and has no connection to the Thirty Years’ War.