Luther burns the papal bull that threatened him with excommunication, in a painting by Karl Aspelin, 1885.Image: Karl Aspelin · Public domainThe Pope excommunicates Martin Luther
In 1520 Pope Leo X gave Martin Luther sixty days to take back forty-one of his teachings or be cast out of the Church. Luther’s answer, in December, was to burn the papal bull in public at Wittenberg, together with books of Church law. On 3 January 1521 the Pope issued a new bull, Decet Romanum Pontificem, declaring Luther and his followers excommunicated. Months later, at the Diet of Worms, Luther again refused to recant and was declared an outlaw of the Empire. The break could no longer be mended, and the Protestant Reformation went its own way.
Source: Encyclopaedia Britannica: Decet Romanum Pontificem ↗
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