(2000 pop. 42.7 million). Sumatra, Indonesia's second-largest and westernmost island, is populated by a number of distinct peoples, including the Acehnese, Minangkabau, Batak, and Malay. Its earliest major states were coastal trading kingdoms;...

Sumatra (also spelled Sumatera) is the sixth largest island in the world (approximately 470,000 km²) and is the largest island entirely in Indonesia (two larger islands, Borneo and New Guinea, are partially in Indonesia). if (window.showTocToggle) {...