Empire · 1650–1964 · Middle East & South Asia
Omani Empire (Muscat, Oman and Zanzibar)
Also known as Oman, Muscat and Oman, Zanzibar, Sultanate of Zanzibar
In 1650 Imam Sultan bin Saif of the Yaruba dynasty drove the Portuguese out of Muscat, and Omani fleets went on to seize Portuguese strongholds on the East African coast, taking Fort Jesus at Mombasa in 1698. Under the Al Said dynasty, founded by Ahmad bin Said in 1744, Oman built a maritime trading empire across the western Indian Ocean.
Said bin Sultan moved his main court to Zanzibar around 1840, where clove plantations worked by enslaved Africans and the caravan trade in ivory and slaves made the island rich. After his death in 1856 his sons split the realm into the Sultanate of Zanzibar and the Sultanate of Muscat and Oman, both increasingly under British influence. Zanzibar's sultan was overthrown in a revolution in 1964, while the Al Said dynasty continued to rule Oman.

- Years
- 1650–1964
- Capital
- Nizwa and Rustaq under the Yaruba imams; Muscat from 1792; Zanzibar became the sultan's main seat in the 1830s–1840
- Greatest extent
- 1850, about 350,000 km²
- Region
- Middle East & South Asia
Rough estimate: Oman plus Zanzibar, Pemba and the Swahili coast; no scholarly area figure found
Legacy
Swahili coastal culture still bears Omani influence, and the Al Said dynasty rules Oman to this day.
Rulers
- Sultan bin Saif I 1649–1679
Yaruba imam who expelled the Portuguese from Muscat
- Ahmad bin Said 1744–1783
Founder of the Al Said dynasty
- Said bin Sultan 1806–1856
Built a commercial empire centred on Zanzibar
- Barghash bin Said 1870–1888
Sultan of Zanzibar forced by Britain to close the slave market in 1873
- Qaboos bin Said 1970–2020
Sultan who modernised Oman
Realms on the map
- Sultanate of Oman since 1744
- Sultanate of Muscat and Oman 1900–1969
- Omani Slave Coast 1814–1855
- Sultanate of Zanzibar 1963