German Protestantism refers to the branch of Christianity that emerged from the Reformation in the 16th century, primarily led by figures like Martin Luther. Luther's 95 Theses, which criticized the Catholic Church's practices, sparked a movement that emphasized faith, scripture, and personal relationship with God. This movement gave rise to various denominations, including Lutheranism and Reformed Christianity. German Protestantism played a significant role in shaping modern European society, influencing religious, cultural, and political developments. Today, it remains a vital part of Germany's religious landscape, with millions of adherents across the country.