The Umayyads and the Abbasids.
Assasination
a group called Abbasid gained support from other Muslims and when the abbasids invited the umayyads over for dinner and a meeting the abbasids left the room leaving the umayyads to be assassinated
The Abbasids, Umayyads of Al-Andalus, and Fatimids were linked by their shared Islamic faith and the overarching political and cultural legacy of the early Islamic empire. They all claimed legitimacy through their descent from the Prophet Muhammad, albeit through different lines, which influenced their political ideologies and governance. Additionally, trade, cultural exchanges, and scholarly pursuits facilitated communication and collaboration among these caliphates, despite their geographical separation. Their interactions contributed to the rich tapestry of Islamic civilization and the diffusion of knowledge across regions.
no the umayyads ruled damascus as there capital the abbasids took Baghdad as there capital...
The Abbasids took control
the abbasids defeated the umayyads in the battle of the great zab in ad 750.they did this because the umayyads started ruling like kings.they started hunting and dancing and only kept the Arabs in the top position.they also made non-Arab Muslims pay more taxes than them.people became unhappy with the umayyads and that is why the abbasids started the war.
They built a strong bureaucracy and huge standing army.
The Abbasids were an Arab dynasty descended from Abbas, uncle of Muhammad, who supplanted the Umayyads in ad 750.
The Abbasids fell to an ambush of the mongols; while Umayyads fell to economics.
Baghdad and Cordoba were the two centres of great learning during the Caliphate of Abbasids and Umayyads.
The imperial caliphal state was eclipsed due to a combination of internal fragmentation, external pressures, and the rise of regional powers. The Abbasid Caliphate, once a unifying force, faced challenges from rival dynasties, such as the Fatimids and Umayyads in Spain, which weakened its authority. Additionally, invasions by the Mongols and Crusaders further destabilized the region. Ultimately, the loss of centralized control and the emergence of local governance led to the decline of the caliphal state.