 However, the term literally means "Representative of the Son of God", is used on papal tiaras, and the title "vicar of Christ" has been applied to popes throughout the centuries, as well as to Saint Peter in "Donation of Constantine", regarded as the first Pope by the Catholic Church.The beast from the earth has also been interpreted as the Islamic prophet Muhammed, according to some medieval Christians, particularly Pope Innocent III; Saracens and Antipopes, according to other medieval Christians, particularly Joachim of Fiore; and the government of the United States of America (this is the view of the Seventh-day Adventist Church).This interpretation was introduced by Adventist pioneer John Nevins Andrews.