What follows is a survey and analysis of notable recorded interactions between Christians and Muslims during the first three centuries of Islam.2 As outlined in the Introduction to this study, not all interactions during this period are mentioned here, rather only those which are especially informative as to or innovative in the development of Christian-Muslim dialogue, and the attitudes of Christian and Muslim religious leaders regarding the other. These filtered engagements are interpreted according to the Christian-Muslim dialogue typology also from the Introduction. They are arranged here topically under the subjects of the Trinity, the incarnation, the crucifixion, tah. rf, the prophethood of Muhammad, and Islamic expansionism. These six headings provide the main themes for Christian-Muslim relations during this time period.