| A | B |
| Muhammad | A prophet of Islam who was said to have received messages from the Islam God |
| Allah | The Name, in Arabic, of the Islam God |
| Muslim | The followers of Islam |
| Mosque | Islamic houses of worship |
| Astrolabe | An instrument used to help sailors navigate using the position of starts |
| Dark Ages | A time around around 500-1000 that little advancement occured in |
| Feudalism/ Feudal System | A government where land is exchanged for loyalty and service |
| Fief | A plot of land |
| Homage | Service |
| Lords | People who owned land |
| Vassels | People who agree to perform services for the lord |
| Manors | A large block of land that included farmland, forests, the village, a church, and a castle of the nobles who owned it all |
| Serfs | People who work on the land but didn't own it |
| Tenants | Someone who pays rent to a land owner |
| Freeman | Peasants who rented land from a lord |
| Monasteries | Private self-sufficient religious communities |
| Monks | The people who opened the monasteries |
| Nuns | The girl version of a monk |
| Covenents | The girl version of a monastery |
| Scriptorium | A place where books were copied by hand |
| Page | The start of knighthood training |
| Squire | A knight's assistant and apprentice |
| Chivalry | A code of rules knights were supposed to follow |
| Extremism | Thinking and acting outside normal beliefs |
| Tithings | The ten percent of your income that went to the church |
| Bishops | Church leaders |
| Pograms | Attacks on Jews because of their different religion/religious beliefs |
| Scapegoats | People wrongly blamed for a problem |
| Nation-states | Independent countries with a strong central government |
| Magna-Carta | Great Charter - the basis laws in Europe that protected the freedom of everyone |