| A | B |
| Byzantine Empire | Eastern Roman Empire |
| Byzantine advantages | Massive wealth, Constantinople was a might fortress and Greek fire. |
| Black Death | Weakened the Byzantine Empire allowing Muslims to conqure N. Africa and the Holy Land. |
| Pope Urban II | Pope who preached the First Crusade. |
| Church of the Holy Sepulchre | Church in Jerusalem where Jesus was crucified and resurrected. |
| Peasant's Crusade | Crusade of the poor, the week, lepers, cripples, etc. |
| Constantinople | Capital of the Byzantine Empire. |
| jihad | Infinite struggle |
| Crusade | Wars for God to retake Jerusalem from the Muslims. |
| Greek Fire | First secret weapon. Burns on water. Inextinguishable. |
| Why Pope Urban called the crusade? | Increase his prestige and help him fight simony. |
| Simony | Sale of church offices. |
| Jews | Do not believe that Jesus was the Christ. Believe in the Torah (Old Testament) |
| Slaughter of Jerusalem | Crusaders kill men, women children, Muslims, Christians and Jews in a religious fury! |
| Outremer | Name for crusader kingdom. Land beyond the sea. |
| Templars and Hospitallers | Church knights. Warrior monks who fought to defend the holy land. |
| Saladin | Muslim ruler of Egypt who calls for jihad against the Christian invader. |
| Battle of Hattin | Crusaders gathered up every last man, marched across a waterless desert and are destroyed by Saladin. |
| King Guy | King of Jerusalem who attacks Acre. |
| Jerusalem | Holiest city in the world. |
| Third Crusade | 1187-1193 Crusade of Kings. Richard the Lionheart, Philip Augustus, and Frederick Barbarossa |