He belonged to the Banu Ghifar, the Kinanah tribe. He died in 652 CE, at al-Rabadha, in the desert east of Medina. Abu Dhar is remembered for his strict piety and also his opposition to Muawiyah I during the caliph Uthman ibn Affan era.

Muadh ibn Jabal was a sahabi of the Islamic prophet Muhammad. Muadh was an Ansar of Banu Khazraj and compiled the Quran with five companions while Muhammad was still alive. He was known as the one with a lot of knowledge. He was called by Muhammad "the one who will lead the scholars into Paradise."

Ammar ibn Yasir
Died 657 CE (age 87)
Burial Place Raqqa, Syria

Cause of Death Martyrdom in the Battle of Siffin, Al-Sham

Cause of Death Martyrdom in the Battle of Siffin, Al-Sham

The Umayyads were the first Muslim dynasty, established in 661 in Damascus. Their dynasty succeeded the leadership of the first four caliphs—Abū Bakr, ʿUmar I, ʿUthmān, and ʿAlī. It was established by Muʿāwiyah ibn Abī Sufyān, a native of Mecca and a contemporary of the Prophet Muḥammad.

Zubaidah was the wife and double cousin of Harun ar-Rashid.

She was Born: in 766 AD, in Iraq

Died: July 10, 831 AD, Baghdad, Iraq

Abū Isḥāq Muḥammad ibn Hārūn al-Rashīd better known by his regnal name al-Muʿtaṣim biʾllāh, was the eighth Abbasid caliph, ruling from 833 until his death in 842. A younger son of Caliph Harun al-Rashid, he rose to prominence through his formation of a private army composed predominantly of Turkic slave-soldiers.

Bait al-Hikmah library reflects the memory of the first Bait al-Hikmah (House of Wisdom)

The 10th-century library of Caliph al-Ḥakam in Cordova, Spain, boasted more than 400,000 books.

Bait al-Hikmah library was established in Baghdad by Khalifa Abu Jafar al-Mansur between 135 and 158 A.H

Later it was developed by Caliph Harun al-Rashid and Caliph Mamoon Rashid during the **