Carolinian is an Austronesian language originating in the Caroline Islands, but spoken in the Northern Mariana Islands. It is an official language (as well as English) of the Carolinian people. Carolinian is a threatened language according to the Catalogue of Endangered Languages (ELCat), but available data is scarce. There are approximately 3,100 native speakers in the world. Carolinian has 95% lexical similarity with Satawalese, 88% with Woleaian and Puluwatese; 81% with Mortlockese; 78% with Chuukese, 74% with Ulithian.
The Commonwealth of the Northern Marianas occupies a chain of 14 islands in the Pacific, approximately 1,300 miles southeast of Japan. The total land areas are 183.5 square miles, and some islands are unpopulated. Most Carolinians live on Saipan, the largest island, though a very small island. Agrigan, is reported to be populated solely by Carolinians speaking Carolinian language.
Carolinian language is more usually known as Saipan Carolinian, it was born from several languages in the Carolinian language continuum, due to a century of migration from the west Carolinian atolls to the Northern Marianas island of Saipan in 1815. Spoken mostly by the Carolinian people, Carolinian is the most closely related dialect to Satawalese, Woleaian, and Puluwatese languages. Nowadays, Carolinian is changing quickly due to English, which has dominated Micronesia since World War II. There are only a small percentage of Carolinian children left on Saipan who can confidently speak the traditional form of Carolinian.
The Carolinian language comes from closely related languages and dialects. It is a member of the family of Austronesian languages. The first residents were the Austronesians, who came from Taiwan. In 1652, Europeans started to live on the Caroline Islands and spoke the language. Later, people communicated with Europeans in the main linguistic areas of the Carolinian language at the end of the 1600s. Between 1795 and 1797, a Spanish official on Guam, Don Luis de Torres, began to study the Carolinian language and discovered its dialect continuum.