What is the Reformation, and what did Martin Luther and John Calvin do in the Reformation?
The Reformation was the time in history when the Roman Catholic Church split up and Western Europe was no longer united by one Christian religion. After the Reformation, there were still Catholics, but there were also a new group of religions known as the Protestants.
Martin Luther and John Calvin were major leaders of the Reformation. Luther's name is the one that is most connected to the Reformation because it was his criticisms of the Church that led to the first splits.
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