Abbasid expeditions to East Africa
Legendary Abbasid campaigns to the Somali coast and beyond.
The Abbasid expeditions to East Africa are a set of legendary military and administrative ventures recounted in the late Arabic Book of the Zanj. Contemporary scholarship regards these accounts as mythical rather than historical. The expeditions are attributed to the caliphs al-Manṣūr, Hārūn al-Rashīd, and al-Maʾmūn.
Quick Facts
- Caliphs involved
- al-Manṣūr (754–775)
- Hārūn al-Rashīd (786–809)
- al-Maʾmūn (813–833)
- Earliest recorded islamic contact
- 694–695 (Umayyad period, per Book of the Zanj)
- Emissary sent
- Yahya ibn ʿUmar al-ʿAnazī (765–766)
- Final rebellion date
- 837–838 (per Book of the Zanj, inconsistent with al-Maʾmūn's reign)
- Army size
- 50,000
- Archaeological evidence
- Gold dinar of Hārūn al-Rashīd (798/799) found at Pemba
Facts from the source article.
Accounts of the expeditions
The Book of the Zanj reports that the Umayyad caliph Marwān I oversaw the arrival of Islam in Mogadishu and Kilwa in 694–695, with Syrian Muslims sent on caliphal initiative. The inhabitants accepted Islam and agreed to pay the kharāj. After the Abbasid takeover in 750, the caliph al-Manṣūr dispatched an emissary, Yahya ibn ʿUmar al-ʿAnazī, to East African cities in 765–766. The sultans of Mogadishu, Mārka, Barāwa, Faza, Sīwī, Bata, Manda, Ṭaqa, Lamu, Ūzi, Malindi, Uyūmba, Kilifi, Basāsa, Zanzibar, Kilwa, and Waybu accepted him. Gervase Mathew dates this to 766–767 and views it as a military expedition. In 804, the Zanj refused to pay the kharāj, prompting Hārūn al-Rashīd to send an emir with soldiers. He replaced Arab wālīs with Persians from Shīrāz in every village from Mogadishu to Kilwa. The Persians eventually stopped sending the kharāj and rebelled during the Miḥna of al-Maʾmūn. The Zanj sent a manifesto to Baghdad, and the caliph dispatched an army of 50,000 to Malindi, causing rebel leaders to flee into the nyika. They returned after the army left, paid the outstanding kharāj, and accepted al-Maʾmūn's opinion. The Book of the Zanj dates these events to 837–838, which does not align with al-Maʾmūn's reign.
Historicity
Neville Chittick argues that the accounts in the Book of the Zanj must be regarded as mythical. The earliest known copies derive from a single clerk at Malindi in the early 20th century, and the text's account of the Oromo before the 16th century lacks support from earlier written sources. Its strong Arabizing tendencies, including the replacement of Shirazi and Bantu clan names with Arabic forms and the promotion of the legend of Ham, align it with later coastal chronicles criticized for genealogical fabrication and inconsistencies with archaeological evidence. Archaeological evidence does not support extensive early Arab or Persian settlement. However, a gold dinar of Hārūn al-Rashīd dated to 798 or 799 found at Pemba may indicate early Muslim settlement. Felix Chami and others cast doubt on any Arab expeditions after the one recorded by al-Jāḥiẓ.
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