On October 31, 1517. Martin Luther, a 33-year-old theology professor at Wittenberg University walked over to the Castle Church in Wittenberg and nailed a paper of 95 theses to the door, hoping to spark an academic discussion about their contents. It became a key event in igniting the Reformation.
Martin Luther (10 November 1483 – 18 February 1546) was a German monk, priest, professor of theology and iconic figure of the Protestant Reformation. He strongly disputed the claim that freedom from God's punishment for sin could be purchased with money. He confronted indulgence salesman Johann Tetzel with his Ninety-Five Theses in 1517. His theology challenged the authority and office of the Pope by teaching that the Bible is the only source of divinely revealed knowledge from God.
Dr. Martin Luther's seal expresses his theology and his faith.He designed it himself. Black cross indicative of Christ's dreadful sacrifice on the cross for every sinner who ever lived.The cross in the center of a red heart to show that faith causes love, joy & peace to grow in the human heart.Red heart on a white rose because white is the color of angels & blessed spirits. White rose against a blue-sky background to symbolize the Christians's hope for the coming joys of heaven.
John Calvin (1509–1564) was an influential French theologian and pastor during the Protestant Reformation. He was a principal figure in the development of the system of Christian theology later called Calvinism. John Calvin was Martin Luther's successor as the preeminent Protestant theologian. Calvin made a powerful impact on the fundamental doctrines of Protestantism, and is widely credited as the most important figure in the second generation of the Protestant Reformation.