Islamic CaliphatesAbbasid Caliphate
The Abbasid Caliphate was a dynasty of caliphs who ruled the Islamic world from 750 to 1258 AD. The Abbasids overthrew the Umayyad Caliphate and established their capital in Baghdad, which became a center of learning and culture during the Islamic Golden Age. The Abbasid Caliphate is known for its advancements in science, medicine, philosophy, and architecture. The caliphate eventually declined in power and influence due to internal strife, external invasions, and the rise of regional dynasties.