The Netherlands Antilles was a constituent country of the Kingdom of the Netherlands. The country consisted of several island territories located in the Caribbean Sea. The islands were also informally known as the Dutch Antilles. The country came into being in 1954 as the autonomous successor of the Dutch colony of Curaçao and Dependencies, and was dissolved in 2010. The former Dutch colony of Surinam, although it was relatively close by on the continent of South America, did not become part of Netherlands Antilles but became a separate autonomous country in 1954. All the island territories that belonged to the Netherlands Antilles remain part of the kingdom today, although the legal status of each differs. As a group they are still commonly called the Dutch Caribbean, regardless of their legal status. The Netherlands Antillean guilder (Dutch: gulden) is the currency of Curaçao and Sint Maarten, which until 2010 formed the Netherlands Antilles along with Bonaire, Saba, and Sint Eustatius. It is subdivided into 100 cents (Dutch plural form: centen). The guilder was replaced by the United States dollar on 1 January 2011 on Bonaire, Saba and Sint Eustatius. On Curaçao and Sint Maarten, the Netherlands Antillean guilder was proposed to be replaced by a new currency, the Caribbean guilder, but this has been stalled indefinitely by negotiations over the establishment of a separate central bank for Curaçao.