Sharjah is one of the emirates of the United Arab Emirates (UAE). The emirate covers 2,600 km² (1,003 mi²) and has a population of over 800,000. The emirate of Sharjah comprises the city of Sharjah (the seat of the emirate), and other minor towns and enclaves such as Kalba, Dibba Al-Hisn and Khor Fakkan. The emirate is a constitutional monarchy of the Al Qasimi dynasty. It has been ruled by historian Sultan bin Mohamed Al-Qasimi since 1972.