Michael Servetus (1511-1553) was a Spanish theologian, physician, cartographer, and humanist. He was the first European to correctly describe the function of pulmonary circulation. His interests included many sciences: mathematics, astronomy and meteorology, geography, human anatomy, medicine and pharmacology, as well as jurisprudence, and the scholarly study of the Bible in its original languages. He is renowned in the history of several of these fields, particularly medicine and theology. He participated in the Protestant Reformation, and later developed a nontrinitarian Christian Theology. Condemned by Catholics and Protestants alike, he was arrested in Geneva and burnt at the stake as a heretic by order of the Protestant Geneva governing council.