Final answer:
The capital of the Abbasid Caliphate known for its splendor and luxurious lifestyle was Baghdad.
Step-by-step explanation:
The capital of the Abbasid Caliphate known for its splendor and luxurious lifestyle was Baghdad. After the revolt in 750, the Abbasids moved the capital from Damascus to Kufa in Iraq. Then, in 762, the caliph al-Mansur founded a new imperial city on the banks of the Tigris River, also known as Baghdad.