Umm al-Qaiwain o͞om äl-kīwīn´ [key], sheikhdom (1995 pop. 35,157), c.300 sq mi (780 sq km), part of the federation of seven United Arab Emirates , SE Arabia, on the Persian Gulf. It is the least populous and least developed emirate. Fishing and boatbuilding remain important; dates are grown in a limited area. Oil has not been found there. The sheikhdom, formerly a British protectorate, became part of the United Arab Emirates in 1971.
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