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Name: oman

Type: Cluster

Start: 752 AD

End: 2022 AD

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Icon oman

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The cluster includes all the forms of the country. In the period of the Omani Empire, Oman controlled also Zanzibar and most of the Swahili Coast.

The cluster includes the following incarnations of the same nation:

  • Imamate of Oman
  • Sultanate of Muscat and Oman
  • Sultanate of Muscat and Oman (British)
  • Sultanate of Oman
  • Establishment


  • January 752: The Imamate of Oman is estimated to have been established in 750 CE, shortly after the fall of the Umayyads.
  • Chronology


    Interactive Chronologies with maps are available in the section Changes Navigation

    1. Conquests of Tughril I


    Expansion during the rule of Tughril I in the Seljuk Empire.

  • January 1054: Between 1053 and 1154 Oman was part of the Seljuk Empire.

  • 2. 1717 Omani invasion of Bahrain


    Was the invasion of Bahrain in 1717 by the Sultanate of Oman that ended the Safavid rule on the island.

  • January 1718: Invasion of Bahrain in 1717 by the Sultanate of Oman, bringing an end to the 115-year rule of the Safavid dynasty in the region.

  • 3. Conquests of Nader Shah


    Expansion during the rule of Nader Shah of the Afsharid Dynasty.

  • January 1737: In 1736 the new Persian dynasty of the Cagiari reconquered Bahrain.
  • January 1744: Afsharid conquest of Muscat by Nader Shah.

  • 4. Jebel Akhdar War


    Was a civil war in the Sultanate of Muscat and Oman caused by the effort of the internal region (Oman) to become independent.

    4.1.Secession of Oman

    Was the secession of Oman from the Sultanate of Muscan and Oman at the beginning of the Jebel Akhdar War.

  • October 1954: De facto secession of Oman.

  • 4.2.Occupation of Oman

    Was a military offensive by the Sultanate of Muscat and Oman in the secessionist region of Oman.

  • October 1954: The Jebel Akhdar War was triggered by the sultan, Said Bin Taimur, on 10 October 1954, when he first licensed IPC oil prospectors to search for oil near Fahud, an area located within the territory of the Imamate, and sent forces to occupy it.
  • October 1954: The Muscat Sultanate's forces moved to capture Tanam.
  • December 1954: On 13 December 1954, the Muscat and Oman Field Force (MOFF), later renamed Sultan of Oman's Armed Forces (SAF), which had eight British officers among its troops, marched from Fahud to Adam and occupied it.
  • December 1955: The capital of the Oman Imamate, Nizwa, was captured by the Muscat Sultanate.

  • 4.3.Revolt/Liberation of Oman

    Was an offensive by the secessionist Imamate of Oman against the Sultanate of Muscat and Oman to increase its territory.

  • January 1958: Omani forces captured Bahla Fort.
  • January 1958: After weeks of skirmishes, with no civilian support from the locals in the interior, the rest of MOFF forces that remained in the interior parts of Oman had no choice but to surrender their way back to Fahud. The Imamate's forces freed Nizwa (capital), Firq, Izki, Tanuf, Bahla and Jabal Akhdar from the Sultunate's control, while Ibri was the only area that remained under the occupation of the Sultunate.
  • January 1958: The MOFF was heavily ambushed at Tanuf, Kamah and Nizwa.
  • January 1958: Talib bin Ali Alhinai, the Imam of Oman's brother, who fled to Saudi Arabia then Egypt, returned to Oman in 1957 with 300 well-equipped Omani fighters landing at Albatinah coast. A second group of fighters landed in Qalhat and made its way to Bidiya, where clashes erupted between both sides. Talib's plan was to divert the MOFF forces to Bidiya, away from the central part of Oman. Talib and his forces successfully made their way to central Oman, where they were joined by Imam Ghalib at Wadi Al-Ula. The insurrection broke out again when Talib's forces took hold of a fortified tower near Bilad Sayt.

  • 4.4.Sultanate Counterattack with british support

    Was the reconquest of the secessionist Imamate of Oman by the Sultanate of Muscat and Oman with British military support at the end of the Jebel Akhdar War.

  • August 1958: Talib's forces retreated to the inaccessible Jebel Akhdar.
  • August 1958: The advancement of the Muscat ground forces started at night from Fahud towards Izz.
  • August 1958: The rebellion at Nizwa was suppressed by the Muscat Regiment and the Trucial Oman Levies from the neighbouring Trucial States.
  • August 1958: Firq conquered by oman.
  • January 1959: The SAS occupied Saiq and Shuraijah.

  • 5. Further events (Unrelated to Any War)


  • January 927: The Wajihids were an Arab dynasty that ruled in coastal Oman in the early and mid-10th century AD.

  • January 1155: The Seljuks were expelled from Oman in 1154, when the Nabhani dynasty came to power.

  • January 1508: In 1507 the Portuguese captured the coastal city of Muscat.

  • January 1551: Muscat gradually extended their control along the coast up to Sohar in the north and down to Sur in the southeast.

  • January 1650: On August 16, 1648 the Imam dispatched an army to Muscat, which captured and demolished the high towers of the Portuguese, weakening their grip over the town. Decisively, in 1650, a small but determined body of the Imam's troops attacked the port at night, forcing an eventual Portuguese surrender on January 23, 1650.

  • January 1651: The Sultanate of Muscat possessed a powerful naval force, which enabled the creation of a maritime empire dating from the expulsion of the Portuguese in 1650 through the 19th century, at times encompassing modern Oman, the United Arab Emirates, southern Baluchistan.

  • January 1667: The Khanate of Kalat was founded in 1666 by Mir Ahmad Khan.

  • December 1698: The fort of Mombasa was subject to an epic two-year siege from 1696-98 by the Omani Arabs, led by Saif bin Sultan. The capture of the fort marked the end of Portuguese presence on the coast.

  • January 1699: In 1698 Lamu was conquered by Oman.

  • January 1699: Zanzibar became part of Oman in 1698.

  • January 1699: Pemba conquered by Muscat and Oman.

  • March 1728: Portuguese rule restored in Mombasa.

  • November 1729: Mombasa conquered by Imamate of Oman.

  • January 1743: The State of Las Bela was founded in 1742 by Jam Ali Khan I, a Baloch chieftain. It was established in the region of present-day Pakistan, near the Arabian Sea. Las Bela was known for its strategic location and its rulers played a significant role in the history of the region.

  • July 1747: Assassination of Nader Shah. Muscat regains independence.

  • January 1751: Around the middle of the 18th century, the Imam of Muscat took possession of this fort, repaired it, and garrisoned it with 200 men. It is since this time that the new Hormuz has risen. The imam pays a tribute to Persia for this acquisition.

  • January 1751: The state of Makran was established in the eighteenth century by native sardars of the Gichki Baloch family of Makran.

  • January 1772: Hadimu conquered by Muscat and Oman.

  • January 1784: By 1783, the Omani Empire expanded eastwards to Gwadar in present day Pakistan.

  • January 1785: In 1784, the island of Kilwa came under the rule of the Sultans of Oman and Zanzibar.

  • January 1795: Between 1794 and 1868, Bandar Abbas was under the control of the Sultanate of Oman and Zanzibar through a lease agreement with Persia.

  • January 1801: Establishment of Suji in Tanganyka.

  • January 1801: Establishment of Nguru in Tanganyka.

  • January 1801: Establishment of Shambalai in Tanganyka.

  • January 1802: C.1801: Gongwe is founded.

  • January 1803: In 1783 Bahrain together with Qatar, under the leadership of the Banū Uṭub tribe, rebelled against the Āl Makhtūr and became definitively independent from the Persians. Independence was short-lived, however, and the archipelago was conquered by the Sultanate of Oman, then in its heyday, in 1802.

  • January 1809: Expansion of the Emirate of Diriyah by 1808.

  • January 1823: In 1822 a new revolt, this time led by the Al Khalīfa family, restored the independence of the Khalifa state in Bahrain.

  • July 1826: Omani rule restored in Mombasa.

  • January 1851: European missionaries began settling in the area from Mombasa to Mount Kilimanjaro in the 1840s, nominally under the protection of the Sultanate of Zanzibar.

  • January 1851: Establishment of Mbaga in Tanganyka.

  • January 1855: The Persians recovered the area of Bandar Abbas in 1854, while the Omani sultan was in Zanzibar.

  • October 1856: After the death of the Sultan in 1856, two of his sons, Majid bin Said and Thuwaini bin Said, struggled over the succession, so Zanzibar and Oman were divided into two separate realms. Thuwaini became the Sultan of Muscat and Oman while Majid became the first Sultan of Zanzibar.

  • January 1857: Under British pressure following the Anglo-Persian War in 1856, Persia renewed Oman's lease on favourable terms.

  • January 1859: In 1858 Sultan Ahmad ibn Fumo Bakari, from the old ruling family of the Nabahani, founded the town of Pate on the island of the same name and established an independent sultanate.

  • January 1869: Two months after its renewal, the Omani lease was cancelled by the Persian government, citing a clause which permitted its termination if the sultan of Oman were overthrown.

  • January 1892: The sultanate of Muscat and Oman was finally placed under a British protectorate in 1891.

  • January 1950: The enclaves of Madha and Nahwa appear to have arisen in the 1930s-40, following a dispute over the ownership of the area between Oman and the local emirs.

  • September 1958: Pakistan conquers Gwadar.

  • August 1970: End of protectorate on Muscat and Oman.

  • Selected Sources


  • p.15 , موسوعة أعلام العلماء والأدباء العرب والمسلمين (Encyclopedia of Notable Arab and Muslim Scholars and Writers, Volume 4), Volume 4 :(2004) دار الجيل ؛
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