From the 15th century onward, Europe experienced major religious, political, and intellectual transformations. The Protestant Reformation in the 16th century led to religious wars between Catholics and Protestants. The 16th-17th century also saw a period of witch trials and persecutions. The Scientific Revolution of the 17th century challenged the authority of the church. Absolute monarchs like Louis XIV consolidated power. The 18th century Enlightenment promoted reason and secular thinking. These movements brought profound changes that reshaped European empires and society.