Question

why was Martin Luther excommunicated from the church

Answer 1

On January 3, 1521, Pope Leo X issued the papal bull Decet Romanum pontificem (“It pleases the Roman Pontiff”), which excommunicated Martin Luther, a German theologian and monk who had been causing the Roman Catholic Church no end of trouble since 1517. ... If not, the bull said, Luther would beexcommunicated.

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