The Gambia less than wide at its widest point, with a total area of . About (11.5%) of the Gambia's area are covered by water. It is the smallest country on the African mainland. In comparative terms, the Gambia has a total area slightly less than that of the island of Jamaica. Senegal surrounds the Gambia on three sides, with of coastline on the Atlantic Ocean marking its western extremity. The present boundaries were defined in 1889 after an agreement between the United Kingdom and France. During the negotiations between the French and the British in Paris, the French initially gave the
The Gambia Department of State, the "Times Comprehensive Atlas of the World" and the Permanent Committee on Geographical Names for British Official Use, the Gambia is one of only two countries whose self-standing short name for official use should begin with the word "The" (the other one being The Bahamas). Upon independence in 1965, the country used the name "The Gambia". Following the proclamation of a republic in 1970, the long-form name of the country became "Republic of The Gambia". The administration of Yahya Jammeh changed the long-form name to "Islamic Republic of The Gambia" in December 2015. On 29 January 2017