Banu Abbas Baghdad was the capital of the Abbasid (Banu Abbas) Caliphate. It was commissioned by Caliph Al-Mansur. Imam Abu Hanifa was the counter of the bricks used to build Baghdad. The four surrounding walls of Baghdad were named: Kufa, Basra, Khurasan, and Damascus, because they pointed in he direction of these destinations.
In 1258 AD, Baghdad was conquered and sacked by the Mongol forces led by Halaku Khan. After conquering the city, The Grand Library of Baghdad was destroyed. Those who attempted to flee were intercepted by the Mongols and killed. They destroyed Mosques, palaces, hospitals, libraries, and any grand building. The Caliph Al Mustasim Billah was killed. This marked the end of the Abbasid Caliphate in Baghdad. The Mamluk rulers of Egypt would later re-establish the Abbasid caliphate in Cairo in 1261. In 1517 the last Abbasid Caliph of Egypt would be captured by the Ottoman Sultan Selim I. Sultan Selim I took the title from him, made Egypt part of the Ottoman Empire, and became the first Ottoman Sultan to use the title of Caliph.
The capital of Banu Umayya was Damascus.
The capital of Banu Fatimah was Cairo.

---

Related posts

City of Samarra was built in: Baghdad was founded by: Independent state of Samani was established in? Ibn Khaldun was an? Prophet Muhammad (SAW) while immigrating to Madina took refuge in: Hazrat Hamza (RA) accepted Islam in the year: Hazrat Khalid bin walid belonged to the tribe of