| A | B |
| Persian Gulf | body of water east of Arabia |
| Red Sea | body of water west of Arabia |
| Ishmael | many Arabs descend from this man |
| Mecca | religious center before and after Muhammad |
| Medina | city in which Muhammed found safety after the Hegira |
| Kaaba | worship building in the city of Mecca |
| trade | what was brought to Mecca one month each year during the time of idol worship |
| Khadija | wealthy widow who hired and later married Muhammad |
| Allah | Arabic word for "God" |
| Allah's great prophets | Abraham, Moses, Jesus |
| Allah's greatest prophet | Muhammad |
| Hegira | Muhammad's running away from Mecca to Medina |
| 622 | year of the Hegira from which Muslims start counting years |
| Friday | day of Muslim worship (since Muhammad reached safety that day) |
| Muslims | followers of the religion of Islam |
| black stone | remaining idol in the Kaaba |
| submission | what the word "Islam" means in English |
| Koran | Muslims' holy book |
| caliphs | leaders of the Islamic religion |
| Damascus | at one point capital of Islamic empire; place where famous steel swords were made |
| unity and power | what Christianity had lost at the time of Muslim takeover of the Holy Land |
| Berbers | people who lived in North Africa |
| Moors | children and descendants of Berber women and Arabic men |
| Pyrenees | the mountain range that separates Spain from France |
| Tours | city in France where the Moors were stopped |
| Constantinople | city in the old Eastern Roman Empire which stopped the progress of the Muslim takeover |
| Charles Martel | military leader who pushed back the Moors at Tours, France |
| paper, alcohol, Arabic numerals | inventions of the Muslims |
| mosque | worship building today of Muslims |
| minaret | large tower of a mosque from which 5 times a day Muslims are called to worship |
| Baghdad | the "Glorious City" known for art and learning |
| Cordova, Spain | city where there is a great Muslim university |
| Middle East; North Africa | heavily-populated Muslim lands |