The invention of the printing press had a profound impact on the Reformation by facilitating the rapid spread of Reformation ideas. Invented by Johannes Gutenberg in the mid-15th century, the printing press enabled the mass production of pamphlets, books, and the Bible, making religious texts more accessible to the general population. This accessibility allowed reformers like Martin Luther to disseminate their critiques of the Catholic Church widely, leading to greater public engagement and discussion around religious practices and beliefs. As a result, the Reformation gained momentum, leading to significant religious, social, and political upheaval across Europe.