History
Long before Islam, people of the interior built the stone beehive tombs and towers of Bat and Al Ayn in the third millennium BC and began digging the aflaj, the gravity-fed water channels that still water the oases; several interior channels, among them Falaj Daris at Nizwa, are part of a UNESCO World Heritage listing. The interior embraced Ibadi Islam early, and Nizwa became the seat of elected Ibadi imams in the early Islamic centuries, the religious capital of inland Oman.
From the 12th to the 15th century the Nabhani dynasty ruled from Bahla, whose great fort dates largely from their time. The Ya'ariba imams who expelled the Portuguese from the coast in the 17th century built the round tower of Nizwa fort and the palace-castle of Jabrin. The Al Bu Said founder, Ahmad bin Said, came from Adam on the edge of the desert, but his successors ruled from the coast, and the interior tribes kept electing imams of their own.
The 1920 Treaty of Seeb granted the imamate autonomy in the interior while recognising the sultan's sovereignty. In the 1950s the sultan, backed by Britain, took Nizwa, and the imam's supporters held out on Jebel Akhdar until British special forces stormed the plateau in 1959. Buraimi, on the western edge, was contested by Saudi Arabia until 1955 and is now divided between Oman and the UAE city of Al Ain. Roads, schools and restoration of the forts followed after 1970.
