The printing press, invented by Johannes Gutenberg in the mid-15th century, revolutionized the dissemination of information and had a profound impact on the Reformation. By enabling the mass production of pamphlets, books, and translated biblical texts, it allowed reformers like Martin Luther to spread their ideas quickly and widely. Luther's "95 Theses" were printed and disseminated throughout Europe, challenging the authority of the Catholic Church and highlighting abuses such as the sale of indulgences. This accessibility to printed materials empowered the laity, fostered critical thinking, and contributed to the fragmentation of the Church, leading to the rise of Protestantism.