Remember that the AP World History exam tests you on the depth of your knowledge, not just your ability to recall facts. While we have provided brief definitions here, you will need to know these terms in even more depth for the AP exam, including how terms connect to broader historical themes and understandings.
Byzantine empire: Formerly the eastern half of the Roman Empire, this Christian (Eastern Orthodox) empire controlled the Eastern Mediterranean Basin from the Fall of Rome to the Ottoman takeover nearly 1,000 years later (474–1453 C.E.).
Islamic Caliphates: In the Islamic world, the states controlled by caliphs, or successors of Muhammad.
Grand Canal: Begun in the fourth century B.C.E., construction resumed in 605 C.E. in China. This canal, the world’s longest, connected the fertile Huang He River to the highly-populated cities in the north, allowing grain to be shipped easily.
Neo-Confucianism: As trade expanded into China, Buddhism was introduced. Neo-Confucianism, popular during the Tang Dynasty, fused elements of Buddhism and Confucianism.
Fast-ripening rice: Introduced to China from Vietnam during the Tang Dynasty, this crop allowed the Chinese to have two harvests per year, dramatically improving output; combined with an improved infrastructure, this crop led to a significant growth of the Chinese population.
Mongols: Group of Central Asian nomads from Mongolia who, under the leadership of Genghis Khan, conquered large portions of the Asian continent. Their four empires, centered on Russia, China, Persia, and the Central Asian steppes, were led by Khan’s successors, ensuring a century of peace from approximately 1250–1350 C.E.
Mecca: Located in Saudi Arabia, it is considered the holiest city in Islam, as it is the birthplace of the Prophet Muhammad. A relic known as the Ka’ba (“Black Stone”) made it a pilgrimage site before the emergence of Islam. Today, it is the focal point of the hajj, a trip to Mecca that every Muslim must make during his or her lifetime.
Muhammad: An Arabian merchant (570–632 C.E.) who, after a revelation from the archangel Gabriel, began preaching a new religion called Islam. His followers quickly spread the new faith throughout Arabia during the last 10 years of his life.
Shi’a: One of the two main branches of Islam. Shi’a rejects the first three Sunni caliphs and regards Ali, the fourth caliph, as Muhammad’s first true successor.
Sunni: One of the two main branches of Islam, commonly described as orthodox, and differing from Shi’a in its understanding of the Sunnah and in its acceptance of the first three caliphs.
Al-Andalus: Located in modern-day Spain, this Islamic state thrived in the 700s C.E. Led by the Berbers, this state was renowned for its achievements in science, mathematics, and trade.
Umayyads: Royal clan who took control of the first caliphate in 661 C.E. Their rule was hereditary. Under their rule, a dominant military rapidly expanded the empire, an efficient bureaucracy governed each territory, and subjected peoples were tolerated. The Umayyads’ love of money, though, caused the Abbasids to overthrow them in 750 C.E.
Astrolabe: Introduced to the Islamic world in the 700s C.E., where it was perfected by mathematicians. Used by astronomers and navigators to determine latitude through inclination.
Trans-Saharan trade: Starting in the 400s and 500s C.E., trade across North Africa thrived thanks to an organized network of camel caravans carrying gold, salt, cloth, slaves, and other valuables. This allowed the kingdoms of Ghana and Mali to thrive, and as Islam spread to Africa, allowed its teachings to impact the lives of kings and traders.
Charlemagne: Ninth-century king of the Franks who ruled over the Holy Roman Empire. Despite his best efforts, his attempts to unify large territories failed, and the feudal system allowed lords and vassals to struggle for power.
Feudalism: Developed in response to Viking invasions, this system allowed medieval Western Europeans to create a political system based on loyalty. A lord, usually a nobleman, would protect his vassal in exchange for mandatory labor or military service. In return, the vassal would receive a fief, or grant of land.
Crusades: Launched by Pope Urban II in 1095 C.E., these holy wars were called in an attempt for Christians to reclaim the Holy Land of Israel from Muslim “infidels.” The four campaigns, lasting over 100 years, were unsuccessful but did stimulate European-Muslim trade and reintroduce Europeans to wisdom that had been last taught during the Classical period.
Bills of exchange: Known as sakk in the Islamic world and also used in China during this period, these forerunners of modern-day bank checks were written guarantees of payment; these helped facilitate trade.
Hanseatic League: Collaborative organization of trade guilds founded in Germany in the 1200s C.E., it dominated Northern European trade for the next two centuries.
Polynesians: Indigenous to the distant islands of the Southwest Pacific Ocean, Polynesians used their geographic isolation to their advantage: they raised domesticated pigs and dogs, grew tropical fruit, and mastered seafaring to travel between islands.
Vikings: Starting in the 800s C.E., these people from Scandinavia used their seafaring skill to terrorize Western Europe and settle in regions as far away as North America.
Seljuk Turks: Central Asian nomads who converted to Islam around the year 1000 C.E. By 1055, they had overtaken the Abbasid Empire, and they overtook the Byzantine Empire in 1071, laying the foundation for Muslim rule in modern-day Turkey.
Genghis Khan: A Mongol clan leader who united the clans and made them the most feared force in Asia. Under his leadership, the Mongol Empire expanded greatly into China, Persia, Central Asia, and Tibet. His sons ruled the Four Khanates that followed, and his grandson, Kublai Khan, became leader of Yuan Dynasty China in 1279 C.E..
Mansa Musa: Ruling from 1312 to 1337 C.E., he is the most famous of the Mali emperors. His capital, Timbuktu, was a center of trade, culture, and education. He is most famous, though, for going on hajj to Mecca (a practice that few Muslims in his time actually did) carrying a large caravan with satchels of gold, which he used to fund schools and mosques across his empire
Bantu: Ancient peoples of West Africa who, starting around 2000 B.C.E., began a great migration to East and Central Africa. By encountering other Africans and Muslims, they adapted to their new surroundings and sustained their increasing population with the banana. Their language fused with Arabic to create Swahili, still spoken by many East Africans.
Swahili city-states: As the Trans-Saharan trade dominated North and West Africa, East African trade was dominated by interchanges between Bantu and Arab mariners. Cities in present-day Somalia, Kenya, and Tanzania became bustling ports, and in an effort to facilitate trade, the Bantus created a hybrid language that allowed them to communicate with the Arabs. This language, Swahili, is still spoken by over 80 million East Africans.
Melaka: Located in modern-day Malaysia, this port city became a waystation for sea traders from China and India in the fourteenth century.
Ibn Battuta: Islamic traveler who, in the fourteenth century, visited the kingdom of Mansa Musa in the Mali Empire. His writings stimulated an interest in African trade.
Marco Polo: Venetian merchant who spent over 20 years travelling the Silk Roads through the Mongol Empire, where he actually served on the court of its ruler, Kublai Khan. His efforts, which were compiled in a book, stimulated interest in trade with China.
Bubonic Plague: Also known as the Black Plague, this disease spread from China to Europe through rats. By decimating Europe’s population, the plague ended the feudal system and led many to question religion.
Renaissance: Although Christian soldiers were unsuccessful in reclaiming the Holy Land, their exposure to Muslim advances in math, science, and the arts stimulated an interest in relearning Classical wisdom. In an age when the unexplained was attributed to God, this caused people to begin questioning the true nature of phenomena, leading Europe out of the “Dark Ages” and into a period of artistic and scientific self-discovery, particularly from the fourteenth through the sixteenth centuries.