The Battle of the Zab ( ar, معركة الزاب), also referred to in scholarly contexts as Battle of the Great Zāb River, took place on January 25, 750, on the banks of the

Great Zab The Great Zab or Upper Zab ( (''al-Zāb al-Kabīr''), or , , ''(zāba ʻalya)'') is an approximately long river flowing through Turkey and Iraq. It rises in Turkey near Lake Van and joins the Tigris in Iraq south of Mosul. The drainage basin o ...

River in what is now the modern country of

Iraq Iraq,; ku, عێراق, translit=Êraq officially the Republic of Iraq, '; ku, کۆماری عێراق, translit=Komarî Êraq is a country in Western Asia. It is bordered by Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq ...

. It spelled the end of the

Umayyad Caliphate The Umayyad Caliphate (661–750 CE; , ; ar, ٱلْخِلَافَة ٱلْأُمَوِيَّة, al-Khilāfah al-ʾUmawīyah) was the second of the four major caliphates established after the death of Muhammad. The caliphate was ruled by th ...

and the rise of the

Abbasids The Abbasid Caliphate ( or ; ar, الْخِلَافَةُ الْعَبَّاسِيَّة, ') was the third caliphate to succeed the Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abdul-Muttalib ...

, a dynasty that would last from 750 to 1258.

Background

In 747, a major rebellion broke out against the

, which ruled from southern Gaul to the western periphery of China from 661 to 750. The principal cause of the rebellion was the increasing gap between the outlying peoples of the Caliphate and the

Damascus )), is an adjective which means "spacious". , motto = , image_flag = Flag of Damascus.svg , image_seal = Emblem of Damascus.svg , seal_type = Seal , map_caption = , ...

-based Umayyad government. The Umayyad-appointed governors of the Caliphate's various provinces were corrupt and interested only with personal gains. Additionally, the Umayyads claimed no direct descent from

Muhammad Muhammad ( ar, مُحَمَّد; 570 – 8 June 632 Common Era, CE) was an Arab religious, social, and political leader and the founder of Islam. According to Muhammad in Islam, Islamic doctrine, he was a prophet Divine inspiration, di ...

, while the Abbasids did (they descended from Muhammad's uncle Abbas—a fact the latter used greatly during the revolution).

The armies

In 750, the army of the Umayyad

caliph A caliphate or khilāfah ( ar, خِلَافَة, ) is an institution or public office under the leadership of an Islamic steward with the title of caliph (; ar, خَلِيفَة , ), a person considered a political-religious successor to th ...

Marwan II Marwan ibn Muhammad ibn Marwan ibn al-Hakam ( ar, مروان بن محمد بن مروان بن الحكم, Marwān ibn Muḥammad ibn Marwān ibn al-Ḥakam; – 6 August 750), commonly known as Marwan II, was the fourteenth and last caliph of ...

fought a combined force of

Abbasid The Abbasid Caliphate ( or ; ar, الْخِلَافَةُ الْعَبَّاسِيَّة, ') was the third caliphate to succeed the Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abdul-Muttalib ...

Shia Shīʿa Islam or Shīʿīsm is the second-largest Islamic schools and branches, branch of Islam. It holds that the Prophets and messengers in Islam, Islamic prophet Muhammad in Islam, Muhammad designated Ali, ʿAlī ibn Abī Ṭālib as his S ...

Khawarij The Kharijites (, singular ), also called al-Shurat (), were an Islamic sect which emerged during the First Fitna (656–661). The first Kharijites were supporters of Ali who rebelled against his acceptance of arbitration talks to settle the ...

, and Iraqi forces. Marwan's army was, on paper at least, far larger and more formidable than that of his opponents, as it contained many veterans of earlier Umayyad campaigns against the

Byzantine Empire The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...

; its support for the caliph, however, was only lukewarm. The morale of the Umayyads had been damaged by the series of defeats inflicted earlier in the rebellion, while the morale of the Abbasid armies had increased.

The battle

The Abbasid army formed a spear wall, a tactic they had adopted from their Umayyad opponents, presumably from witnessing it in earlier battles. This entailed standing in a battle line with their lances pointed at the enemy (similar to the stakes used by English longbowmen at Agincourt and Crécy many centuries later). The Umayyad cavalry charged, possibly believing that with their experience they could break the spear wall. This was a mistake on their part, however, and they were all but butchered. The Umayyad army fell into retreat, its morale finally shattered. Many were cut down by the zealous Abbasids or were drowned in the wintertime River Zab.

Aftermath

himself escaped the battlefield and fled down the Levant, pursued relentlessly by the Abbasids, who met no serious resistance from the Syrians because the land had recently been laid waste by an earthquake and pestilence. Marwan fled at last to

Abusir Abusir ( ar, ابو صير ; Egyptian ''pr wsjr'' cop, ⲃⲟⲩⲥⲓⲣⲓ ' "the House or Temple of Osiris"; grc, Βούσιρις) is the name given to an Egyptian archaeological locality – specifically, an extensive necropolis of ...

/Busir, which is a small town on the Egyptian

Nile The Nile, , Bohairic , lg, Kiira , Nobiin language, Nobiin: Áman Dawū is a major north-flowing river in northeastern Africa. It flows into the Mediterranean Sea. The Nile is the longest river in Africa and has historically been considered ...

delta. It was there, a few months after the battle, that he was at last killed in a short battle and replaced as caliph by

Saffah Abū al-ʿAbbās ʿAbd Allāh ibn Muḥammad al-Saffāḥ ( ar, أبو العباس عبد الله بن محمد السفّاح‎; 721/722 – 8 June 754, al-Anbar) usually known as Abūʾl-ʿAbbās as-Saffāḥ or simply by his laqab As-S ...

Background

The armies

The battle

Aftermath

See also

References

Citations

Sources

Further reading