Island, in the Irish Sea off the northwestern coast of England.
Area: 221 sq mi (572 sq km). Population (2002 est.): 76,900. It is a self-governing crown possession of Britain, with its own legislature. The popularly elected House of Keys constitutes one of the most ancient legislative assemblies in the world. Capital: Douglas (pop., 2001: 25,347). The island is about 30 mi (48 km) long and 10 mi (16 km) wide. The Manx breed of tailless cats is believed to have originated there. The isle was home to Irish missionaries beginning in the 5th century AD. It was held by the Norse (9th13th centuries), Scots (13th14th centuries), and English settlers (from the 14th century). It was made a crown possession in 1828.