This compact booklet outlines and explains the development of Islam’s view and treatment of non-Muslims during Muhammad’s prophethood. Islam’s relationship with non-Muslim peoples negatively changed over time by Muhammad’s (and successive caliphs’) application of directives contained in the ninth chapter of the Qur’ān (al-Tawba, or “the Repentance”), considered one of the most definitive suras, or chapters, of the Qur’ān regarding interpersonal relations between Muslims and non-Muslims. One of the most infamous verses of this sura is the Sword verse (Q 9.5; Palmer translation): “…kill the idolaters wherever ye may find them; and take them, and besiege them, and lie in wait for them in every place of observation….” Many Islamic scholars claim that the ninth sura is the final chapter or one of the last “revealed” sections of the Qur’ān and thus its rulings abrogate, or nullify, any contradictory commands in chapters revealed earlier. In other words, these later rulings should be the authoritative basis for Islam’s perception, value judgments and dealings with all other religions and their followers