John the Baptist, who is considered a forerunner to Christianity, used baptism as the central sacrament of his messianic movement. Christians consider Jesus to have instituted the sacrament of baptism. The earliest Christian baptisms were by immersion. By the third and fourth centuries, baptism involved catechetical instruction as well as chrismation, exorcisms, laying on of hands, and recitation of a creed. In the West, affusion became the normal mode of baptism between the twelfth and fourteenth centuries, though immersion was still practiced into the sixteenth. In the sixteenth century, Martin Luther retained baptism as a sacrament, but Swiss reformer Huldrych Zwingli considered baptism and the Lord's supper to be symbolic. Anabaptists denied the validity of infant baptism, which was th