The biggest catastrophe in Europe, the Thirty Years' War, was caused by Martin Luther's longing for a purer Christianity. Between 1618 and 1648, Europe lost over 8 million innocent people, in an orgy of violence between Protestants and Catholics. Often referred to as "Europe's apocalypse", how did a war between people of the same faith lead to such appalling catastrophe?

00:00 The Protestant Reformation
10:08 St. Bartholomew's Day Massacre
10:36 The Thirty Years' War

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