Qatar population was 2.6 million: 313,000 Qatari citizens and 2.3 million expatriates. Islam is the official religion of Qatar. The country has the highest per capita income in the world. Qatar is classified by the UN as a country of very high human development and is widely regarded as the most advanced Arab state for human development. Qatar is a high-income economy, backed by the world's third-largest natural gas reserves and oil reserves. Qatar has been ruled by the House of Thani since Mohammed bin Thani signed a treaty with the British in 1868 that recognised its separate status. Following Ottoman
Iskandar Thani Iskandar Thani Iskandar Thani Alauddin Mughayat Syah (1610 - 15 February 1641) was the thirteenth sultan of Aceh, following the powerful Iskandar Muda. Iskandar Thani was the son of the 11th sultan of Pahang, Ahmad Shah II, who was brought to Aceh in the conquest of Pahang in 1617 by Iskandar Muda. He married the sultan's daughter, the later Sulṭāna Taj ul-Alam, and succeeded Iskandar Muda as sultan when he died in 1636. Reigning in the wake of the rout of the Acehnese fleet in 1629, Iskandar Thani was not able to continue his predecessor's military successes. He was a