jan 1, 1618 - 30-Year War. The whole story!
Description:
By 1618, the Catholic Habsburg emperors (not Ferdinand II because he didn't reign yet) were trying to strengthen their control over the Holy Roman Empire and roll back Protestant influence.
Bohemia was mostly Protestant, and many of its nobles had become Calvinists — a faith not legally recognized under the Peace of Augsburg (only Catholics and Lutherans were recognized).
When the new emperor, Ferdinand II, began restricting Protestant rights and pushing Catholic authority, the Bohemian nobles feared they would lose both their religion and political autonomy.
Their response was dramatic: they confronted the emperor’s officials in Prague and threw them out a castle window, an event known as the Defenestration of Prague
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