Final answer:
The Protestant Reformation was a religious movement in the 16th century that resulted in the divide between Roman Catholics and Protestants. Martin Luther played a major role in the Reformation, along with other reformers like Ulrich Zwingli and John Calvin. The Reformation had effects such as religious wars, the spread of Protestantism, and the Catholic Reformation.
Step-by-step explanation:
The Protestant Reformation was a religious movement in the 16th century that resulted in the theological divide between Roman Catholics and Protestants. It was sparked by the discontent among some European Catholics and an interest in spiritual transformation in northern Europe. Martin Luther, a German monk, played a major role in the Reformation by publicly objecting to the questionable practices of the medieval Roman Catholic Church.