Omanis are the nationals of Oman. Omanis have inhabited the territory that is now Oman for thousands of years. In the eighteenth century, an alliance of traders and rulers transformed Muscat (Oman's capital) into the leading port of the Persian Gulf. Omani people are ethnically diverse, the Omani citizen population consists of many different ethnic groups. The majority of the population consists of Arabs, with many of these Arabs being Swahili language speakers and returnees from the Swahili Coast, particularly Zanzibar. Additionally, there are ethnic Balochis, Lurs, Lawatis, Swahili and Mehri. Omani citizens make up the majority of Oman's total population. Over one and a half million other Omanis live in other areas of the Middle East and the Swahili Coast.