nomadic tribes that lived in Arabia
Muhammed - the prohet and, according to Muslims, messenger of God, who laid the foundations for the Islamic religion.
Revelations - visions or other forms of communication recieved from a god.
Quran - the book that contains all the revelations Muhammed recieved from God.
Prophet - Messenger from God.
Islam - monotheistic religion started by Muhammed in the seventh century
Muslims - the followers of Muhammed, who believed in one God only; Allah
Hijarah - the journey of Muhammed and his followers from Mecca to Medina.
Ummah - community of Muslims
Jihad - Islamic struggle for God
Caliph - political and religious leader of the Ummah
heathen: someone who does not believe in the God of Christians, Jews, or Muslims.