| A | B |
| Constantinople | Great Eastern capital through which most crusaders passed on their way to the Holy Land. |
| infidels | unbelievers |
| Peter the Hermit | Had seen Christians suffer at Jerusalem and wanted to oust the Muslims from the Holy Land. Went from town to town preaching Crusade. |
| Bulgarians and Hungarians | Attacked and killed crusaders on their way to the Holy Land. |
| Venice, Genoa, and Pisa | Italian cities that became wealthy during the Crusades. |
| Antioch | City captured by the Christians after a long siege during the 1st Crusade. A relic is said to have inspired the victory. |
| St. Bernard of Clairvaux | Monk and hymn writer who inspired the Second Crusade. |
| Saladin | Turkish ruler of Jerusalem during the 3rd Crusade, sent fruit and mountain snow to Richard I when he was ill. |
| relic | A piece of bone, hair, clothing, or other possession related to a saint. |
| Fourth Crusade | Crusade which involved the capture of Constantinople by French crusaders backed by the Venetians. |
| Children's Crusade | People believed this would succeed because adults on crusades were too sinful. |
| compass, windmill, tapestries, and spices | Items which the people of Western Europe began to use as a result of the Crusades. |