Sumatra Island is located in the main road of the Maritime Silk Road, so its economy is prosperous, and some famous trading cities have emerged, mainly in the East. Indian religions, especially Buddhism, have also penetrated into this area. Historically, there are ancient countries in Sumatra, such as Sri Lanka, Sumatra, Brazil, Aceh, the orphan and Dai Li. During the Southern and Northern Dynasties in China (5th-6th century), there was a kingdom of Gando.

In the tenth year of Xuande (1436), Emperor Xuanzong of Ming Dynasty announced the succession of the son of Little Fisherman Wang. Later, Sumatra was destroyed by the Emirate of Aceh until the 20th century, and Sumatra became the name of the whole island.

Extended Data Sumatra Island is located on the equator and is one of the four main islands of Greater sunda islands. It faces the Malay Peninsula across the Straits of Malacca in the northeast, the Indian Ocean in the west, the South China Sea in the east, Java Island across the sunda strait in the southeast and andaman islands in the north.

Sumatra Island was called Suva Ladevie Pa (Sanskrit: Golden Island) in ancient China literature, because the mountainous area of Sumatra Island has been rich in gold since ancient times. In the 6th century, its reputation as "golden island" attracted many Portuguese explorers to Sumatra in search of gold.

Sumatra Island is northwest-southeast, mainly composed of barisan mountains in the west and lowland plain in the east. The western coastal plain is too narrow.

Bali Mountain in the western half is a continuation of Cenozoic mountains in Qinghai-Tibet Plateau, stretching 1600 km from northwest to southeast, running through the whole island. There are more than 90 volcanoes here, the highest of which is Corinth volcano, with an altitude of 3800 meters. Due to the influence of volcanic ash, some areas are fertile and beneficial to agriculture.

There are many lakes, the most famous of which is Doba Lake in the north of the mountain range, with an area of 1 140 square kilometers. It is the largest freshwater lake in Indonesia and the largest volcanic lake in the world.

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