On the 19th of September, seeing a movement among the Egyptian and Turkish ships in the bay, Codrington informed the Ottoman admiral, Tahir Pasha, that he had orders to prevent hostile movements against the Greeks.
The Fatimite caliph 'Obaidallah (see Fatimites), to whom Abu Tahir professed allegiance, publicly wrote to him to restore the stone, but there is some reason to believe that he secretly encouraged him to retain it.
So long as Abu Tahir lived the Carmathians controlled Arabia.
A contemporary, Ibn abi Tahir Taifur (d.
In the 10th century it suffered severely, being repeatedly pillaged in the wars of the Fatimite caliphs Al-Qaim and Abu Tahir Ismail el Mansur with the Sunnite leader Abu Yazid and the Zenata Berbers.
Tahir, 211213 (826829).
Tahir, who in 827 was sent to recover Alexandria, which for some ten years had been held by exiles from Spain.
Tahir decided to reside at Bagdad, sending a deputy to Egypt to govern for him; and this example was afterwards followed.
He was compelled to surrender by the Albanians; the two chiefs of the Turks who killed Tahir Pasha were taken with him and put to death, and he himself was detained a prisoner.
Mamun, on his side, sent in all haste an army of less than 4000 men of his faithful Khorasanians, and entrusted their command to Tahir b.
By a bold attack, in the manner of the Kharijites of yore, Tahir penetrated into the centre of the hostile army and killed Ali.
The frightened army fled, leaving the camp with all its treasures to Tahir, who from that day was named "the man with the two right hands."
Tahir defeated him, forced Hamadan to surrender, and occupied all the strong places in Jabal (Media).
The skilful Tahir succeeded in creating divisions among the troops of his adversaries, and obtained possession, without striking a blow, of the city of Holwan, an advantage which opened the way to the very gates of Bagdad.
A`yan, who was appointed leader of the war against Amin, with orders to send Tahir to Ahwaz.
Tahir continued his victorious march, conquered Ahwaz, took Wasit and Madain, and pitched his camp near one of the gates of the capital, where he was rejoined by Harthama.
Ultimately the eastern part of the city fell into the hands of Tahir, and Amin, deserted by his followers, was compelled to surrender.
He resolved to treat with Harthama, as he was averse to Tahir; but this step caused his ruin.
Tahir succeeded in intercepting him on his way to Harthama, and immediately ordered him to be put to death.
On the day following the death of Amin Tahir caused Mamun to be proclaimed at Bagdad, and promised in his name a general amnesty.
Harthama was ordered to return to Khorasan; Tahir was made governor of Mesopotamia and Syria, with the task of subduing Nasr b.
Mamun had found out also that the general uneasiness was largely due to his treatment of Harthama and Tahir, the latter having been put in a rebellious country without the men and the money to maintain his authority.
The caliph therefore wrote to Tahir to meet him at Nahrawan, where he was received with the greatest honour.
Having taken all precautions, Mamun now made his solemn entry into Bagdad, but, to show that he came as a master, he still displayed for several days the green colours, though at last, at the request of Tahir, he consented to resume the black.
When welcoming Tahir, Mamun bade him ask for any reward he might desire.
Tahir, fearing lest the caliph, not being able to endure the sight of the murderer of his brother, should change his mind towards him, contrived to get himself appointed governor of Khorasan.
Like most of the great Moslem generals, Tahir, it is said, had conceived the project of creating an independent kingdom for himself.
Tahir was a special favourite of Mamun.
I.) Motasim had just returned to Samarra when a serious revolt broke out in Tabaristan, Maziyar, one of the hereditary chiefs of that country, refusing to acknowledge the authority ofAbdallah Ibn Tahir, the governor of Khorasan, of which Tabaristan was a province.
Tahir with his whole family.
Far more dangerous, however, for the Caliphate of Bagdad at the time were the Carmathians of Bahrein, then guided by Abu Tahir, the son of Abu Sa`id Jannabi.
The government of Bagdad resolved to crush the Carmathians, but a large army was utterly defeated by Abu Tahir in 315 (927), and Bagdad was seriously threatened.
Haruns sons Amin and Mamun quarrelled over the succession; Amin became caliph, but Mamun by the aid of Tahir b.
Tahir ultimately (820) i~eceived the ctntrnrnnrahin nf Vhnr~can wIlprc, lip ~, s,~,,l,-l;~ sct~hrich;na a practically independent Moslem dynasty (the Tahirids)i which ruled until about 873 in nominal obedience to Bagdad.