Why did Luther break away from the Catholic Church? Why was he successful, when others had failed?

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Martin Luther, c.1520 Martin Luther, c.1520 © Luther was a German theologian whose writings inspired the Protestant Reformation.

Martin Luther was born on 10 November 1483 in Eisleben. His father was a copper miner. Luther studied at the University of Erfurt and in 1505 decided to join a monastic order, becoming an Augustinian friar. He was ordained in 1507, began teaching at the University of Wittenberg and in 1512 was made a doctor of Theology. In 1510 he visited Rome on behalf of a number of Augustinian monasteries, and was appalled by the corruption he found there.

Luther became increasingly angry about the clergy selling 'indulgences' - promised remission from punishments for sin, either for someone still living or for one who had died and was believed to be in purgatory. On 31 October 1517, he published his '95 Theses', attacking papal abuses and the sale of indulgences.

Luther had come to believe that Christians are saved through faith and not through their own efforts. This turned him against many of the major teachings of the Catholic Church. In 1519 -1520, he wrote a series of pamphlets developing his ideas - 'On Christian Liberty', 'On the Freedom of a Christian Man', 'To the Christian Nobility' and 'On the Babylonian Captivity of the Church'. Thanks to the printing press, Luther's '95 Theses' and his other writings spread quickly through Europe.

In January 1521, the Pope Leo X excommunicated Luther. He was then summoned to appear at the Diet of Worms, an assembly of the Holy Roman Empire. He refused to recant and Emperor Charles V declared him an outlaw and a heretic. Luther went into hiding at Wartburg Castle. In 1522, he returned to Wittenberg and in 1525 married Katharina von Bora, a former nun, with whom he had six children.