It has also been suggested that the name might be related to the ribat of Waggag ibn Zallu in the village of Aglu ( near present-day Tiznit ), where the future Almoravid spiritual leader Abdallah ibn Yasin got his initial training.

Around 1035, the Lamtuna chieftain Abu Abdallah Muhammad ibn Tifat ( alias Tarsina ), tried to reunite the Sanhaja desert tribes, but his reign lasted less than three years.

Waggag assigned him one of his residents, Abdallah ibn Yasin.

Abdallah ibn Yasin was a Gazzula Berber, and probably a convert rather than a born Muslim.

In the early 1050s, the Lamtuna, under the joint leadership of Yahya ibn Umar and Abdallah ibn Yasin-soon calling themselves the al-Murabitin ( Almoravids )-set out on campaign to bring their neighbors over to their cause.

Abdallah ibn Yassin imposed very strict disciplining measures on his forces for every breach of his laws.

* Abdallah ibn Yasin ( 1040 – 1059 )-founder & spiritual leader

The first autobiographical work in Islamic society was written in the late 11th century, by Abdallah ibn Buluggin, last Zirid king of Granada.

* Abdallah ibn Yasin

Among these was Idris ibn Abdallah, who with the help of the local Awraba Berbers, founded the Idrisid Dynasty in 788.

* January / February – The Battle of Bakhamra and the subsequent death of Ibrahim ibn Abdallah put an end to an Alid revolt against the Abbasids.

* Umayyad troops under Abdallah al-Battal and Mu ' awiyah ibn Hisham raze Gangra and unsuccessfully besiege Nicaea.

* Armenia: Abdallah ibn Abd al-Malik invades Armenia to suppress the anti-Arab revolt.

* Byzantine Empire: Abdallah ibn Abd al-Malik captures Mopsuestia in Cilicia from the Byzantines and refortifies it, making it the first Muslim base in the area that will later become the Thughur.

* The Umayyad prince Abdallah ibn Abd al-Malik captures the Byzantine stronghold of Theodosiopolis.

* The first Muslim invasion of the Exarchate of Carthage led by Abdallah ibn Sa ' ad of the Rashidun Caliphate.

Several different variants of the " Cinderella " story, which has its origins in the Egyptian story of Rhodopis, appear in the One Thousand and One Nights, including " The Second Shaykh's Story ", " The Eldest Lady's Tale " and " Abdallah ibn Fadil and His Brothers ", all dealing with the theme of a younger sibling harassed by two jealous elders.

* Abdallah ibn Muhammad, of the Umayyad dynasty

* c. 1010 — Avicenna ( Abu Ali al Hussein ibn Abdallah ibn Sina ) published The Canon of Medicine ( Kitab al-Qanun fi al-tibb ), in which he introduces clinical trials and clinical pharmacology, and which remains an authoritative text in European medical education up until the 17th century.

Several different variants of the story appear in the medieval One Thousand and One Nights, also known as the Arabian Nights, including " The Second Shaykh's Story ", " The Eldest Lady's Tale " and " Abdallah ibn Fadil and His Brothers ", all dealing with the theme of a younger sibling harassed by two jealous elders.

Muhammad ibn Jarir al-Tabari dates this in 803 and lists various accounts for the cause: Yahya's entering the Caliph's presence without permission, Yahya's opposition to Muhammad ibn al Layth who later gained Harun's favour, Ja ' far release of Yahya ibn Abdallah ibn Hasan whom Harun had imprisoned, the ostentatious wealth of the Barmakids and the alleged romantic relationship between Yahya's son and Harun's sister Abbasa.

Abdallah ibn Al-Aftas ( c. 1004-c. 1060 ) was the founder of the Bani Al-Aftas dynasty of the taifa of Badajoz, in what was then Al-Andalus.

sh: Abdallah ibn Al-Aftas

* June 12 – Ahmed Abdallah, former President of the Comoros ( d. 1989 )

In 1989, fearing a probable coup d ' état, president Ahmed Abdallah signed a decree ordering the Presidential Guard, led by Bob Denard, to disarm the armed forces.

Nepotism and favoritism played a central part to Hajj Amīn's tenure as president of the SMC, Amīn al-Tamīmī was appointed as acting president when the Hajj Amīn was abroad, The secretaries appointed were ‘ Abdallah Shafĩq and Muhammad al ’ Afĩfĩ and from 1928-1930 the secretary was Hajj Amīn's cousin Jamāl al-Husaynī, Sa ’ d al Dīn al-Khaţīb and later another of the Hajj Amīn's relatives ‘ Alī al-Husaynī and ‘ Ajaj Nuwayhid, a Druze was an adviser.

Ahmad ibn ' Abdallah Habash Hasib Marwazi ( d. after 869 in Samarra, Iraq ) was an astronomer, geographer, and mathematician from Merv in Khorasan.

Amīn al-Tamīmī was appointed as acting president when Amīn al-Husayni was abroad, The secretaries appointed were ‘ Abdallah Shafĩq and Muhammad al ’ Afĩfĩ and from 1928-1930 the secretary was Amin's cousin Jamāl al-Husaynī, Sa ’ d al Dīn al-Khaţīb and later another of the Amīn al-Husayni's relatives ‘ Alī al-Husaynī, ‘ Ajaj Nuwayhid, a Druze was an adviser.

By December, 1958, when ' Abdallah Ibrahim became President of the Council, elections had even greater importance.

Muhammad was assassinated by his brother Al-Mutarrif, who had allegedly grown jealous of the favour Muhammad had gained in the eyes of their father Abdallah.

Emir Abdallah died at the age of 72.

This came as no surprise, since Abdallah had already demonstrated his affection for his grandson in many ways, namely by allowing him to live in his own tower ( something he did not allow for any of his sons ), and allowing him to sit on the throne on some festive occasions.

Most importantly Abdallah gave Abd al-Rahman his ring, the symbol of power, when Abdallah fell ill prior to his death.

Abd al-Rahman succeeded Abdallah the day after his death, 16 October 912.

The first president of Comoros, Ahmed Abdallah Abderemane, did not last long before being ousted in a coup by Ali Soilih, an atheist with an Islamic background.

Abdallah returned to govern the country and the mercenaries were given key positions in government.

In 1978, president Ali Soilih, who had a firm anti-French line, was killed and Ahmed Abdallah came to power.

Under the reign of Abdallah, Denard was commander of the Presidential Guard ( PG ) and de facto ruler of the country.

Also President Abdallah wanted the mercenaries to leave.

Their response was a ( third ) coup resulting in the death of President Abdallah, in which Denard and his men were probably involved.

In 1999, Anjouan had internal conflicts and on August 1 of that year, the 80-year-old first president Foundi Abdallah Ibrahim resigned, transferring power to a national coordinator, Said Abeid.

In May 2006, Ahmed Abdallah Sambi was elected from the island of Anjouan to be the president of the Union of Comoros.

In 1983 the Abdallah regime borrowed US $ 2. 85 million from the International Development Association to devise a national family planning program.

The Union of the Comoros, known as the Islamic Federal Republic of the Comoros until 2003, is ruled by Ahmed Abdallah Sambi.