Constantinople
Imperial city built by Constantine I, moving Roman capital
Migration Period
Large-scale movement of Germanic, Gothic, and Slavic peoples in Europe
Byzantines
Greek rulers of the Eastern Roman Empire after 485 CE
Justinian I
Byzantine emperor who reconquered the Western Empire temporarily
Code of Justinian
Legal code setting precedent for modern state legal systems
Cyril and Methodius
Byzantine missionaries who spread Christianity in Eastern Europe
Plague of Justinian
Deadly plague in the 6th century reducing populations in the Byzantine Empire
Silk Roads
Trade routes connecting the Western world to South and East Asia
Byzantine-Sassanid War
Conflict weakening both the Byzantine and Sassanid Empires
Macedonian Renaissance
Resurgent growth of the Byzantine Empire in the 11th and 12th centuries
Ottoman Empire
Turkish Muslim empire that ended the Byzantine Empire in 1453
Islam
Theological system emerging from Muhammad's teachings
Muhammad
Arab religious, social, and political leader, last prophet of Islam
Allah
Arabic word for 'God', central in Islamic doctrine
Quran
Central religious text of Islam containing divine revelations
Muslims
Adherents to Islam regardless of race
Five Pillars
Core beliefs and practices in Islam
Ummah
Community of believers in Islam
Mecca
Primary regional Arab city where Muhammad preached Islam
Medina
City where Muhammad converted Arab tribes and rallied support
Rashidun Caliphate
Territory organized after Muhammad's death in 631 CE
Germanic, Gothic, and Slavic peoples
Groups that moved into the Roman Empire from 300 to 570 CE
Huns and Avars
Threatening forces to Roman imperial power in the 5th century CE
Black Death
Plague in the 14th century that significantly reduced populations in the region
Sassanid Empire
Empire that temporarily weakened the Byzantine Empire in the 7th century
Caliph
Civil and religious leader in Islam who determined state policy
Kaaba
Sacred building in Mecca central to Islamic pilgrimage
Dhimmis
Non-Muslim monotheists protected by Muslim states with restrictions
Jizya tax
Tax payable by dhimmis to the Rashidun Caliphate, avoidable by converting to Islam
Umayyad Caliphate
Caliphate from 661-750 CE, conquered Persia and Byzantine Empire, faced internal instability
Civil war
Conflict within the Rashidun Caliphate leading to Umayyad clan's victory
Abbasid Caliphate
Caliphate succeeding Umayyad, enriched state administration, experienced Golden Age
Abbasid Revolution
Revolt by Arabs and non-Arab Muslims against Umayyad, ushering in Abbasid rule
Golden Age
Period of cultural, scientific, and literary achievements under the Abbasid Caliphate
Saharan desert crossing
Achievement under Abbasids connecting Islamic world with West Africa
Sunni and Shi'a
Major branches of Islam with historical disputes over rightful caliph
Seljuk Turks
Group that destroyed Abbasid military power in the 11th century
Ayyubids
Successors to the Abbasid Caliphate in Egypt, maintaining symbolic rule
Mamluks
Non-Arab warriors increasingly relied upon by Arabs, inheriting caliphate title in Egypt
Safavid Dynasty
Persian Shi'a state that became a significant force in the Muslim world
Trade routes
Pathways facilitating Islamic expansion to various regions through trade and migration