Indonesian

The word Indonesia does not come from any local language. James Richardson Logan, a Scottish lawyer and naturalist working in Penang, needed a geographical term for the island chain between the Indian Ocean and the Pacific. In 1850, writing in the Journal of the Indian Archipelago and Eastern Asia, he combined the Greek Indos, the Sanskrit-derived name for the Indian subcontinent, with the Greek nesos, meaning island. He coined a word for geography. Others would use it for sovereignty.

Logan's term spread slowly. Adolf Bastian, a German ethnologist, used it in 1884 to describe the peoples of the archipelago. Dutch colonial administrators resisted it because Indonesia named a region that colonial maps labeled the Dutch East Indies, and naming it independently implied something they preferred not to acknowledge. But Indonesian nationalist movements in the early 20th century seized the word exactly because it was theirs to claim.

In October 1928, young nationalists gathered in Batavia, the colonial capital now called Jakarta, and passed the Youth Pledge. They declared themselves one people, one nation, one language: Indonesian. The language they chose as the national tongue was Malay, already a trade language across the archipelago, renamed Bahasa Indonesia. The political declaration transformed a geographer's coinage into a declaration of existence.

On 17 August 1945, two days after Japan's surrender in World War II, Sukarno read the proclamation of independence in Jakarta, and the Republic of Indonesia came into being. The language called Indonesian became the official tongue of 275 million people spanning more than 17,000 islands. Logan's Greek compound, invented to organize colonial knowledge, became the name of the fourth most populous country on Earth.