other · Horn and East Africa

Imamate of Aussa

1577 CE – 1672 CE (approx.) · capital Aussa

The last refuge of the old Adal state, moved from Harar to the Aussa oasis in the Afar lowlands to escape Oromo attacks.

Origins

After the death of Ahmad ibn Ibrahim al-Ghazi and decades of war, the Adal Sultanate was weakened by Oromo raids on Harar. In 1577 Imam Muhammad Jasa moved the seat of government to the oasis of Aussa on the lower Awash river, in the Afar lowlands, creating a new imamate there.

Rule and society

The imams claimed to continue Adal's religious leadership but ruled a much smaller state, dependent on the irrigated farmland of the Aussa oasis and on Afar pastoralists. Harar was left under its own governors. Raids by Oromo and Afar groups and disputes over succession kept the imamate weak.

Decline and legacy

The imamate disintegrated in the later 17th century, with the imams reduced to figureheads and finally overthrown, traditionally around 1672. In 1734 the Afar Mudaito clan founded the Aussa Sultanate on its former lands, while Harar became the separate Harar Emirate.

Few sources survive for this state; details are uncertain.

Lineage

Adal Sultanate 1415 CE – 1577 CEImamate of AussaAussa Sultanate 1734 CE – 1936 CE

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Cite this page
APA
The Epoch Institute. (2026). Imamate of Aussa. In The Epoch Institute States Register. https://the-epoch-institute.org/state/imamate-of-aussa
MLA
“Imamate of Aussa.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/state/imamate-of-aussa. Accessed .
Chicago
The Epoch Institute. “Imamate of Aussa.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/state/imamate-of-aussa.
Harvard
The Epoch Institute (2026) ‘Imamate of Aussa’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/state/imamate-of-aussa (Accessed: ).

Last reviewed October 2026Random state ↻