In the gospel accounts, Jesus’ ministry begins with his baptism by a figure named John the Baptist, whose own disciples continued to revere him after his execution. Many historians have argued that the historical Jesus was originally a disciple of John the Baptist. John Hamer of Toronto Centre Place will look at what is known about the historical John, his practice of baptism, and his legacy in both Christianity and also Mandaeism (a small, ancient religion which may trace its origin to John’s disciples).