Guinea-Bissau (/ˌɡɪni bɪˈsaʊ/; Portuguese: Guiné-Bissau, Fula: ???? ??????? Gine-Bisaawo, Mandinka: ߖߌߣߍ ߺ ߓߌߛߊߥߏ߫ Gine-Bisawo), officially the Republic of Guinea-Bissau (Portuguese: República da Guiné-Bissau [ʁɛˈpuβlikɐ ðɐ ɣiˈnɛ βiˈsaw]), is a country in West Africa that covers 36,125 square kilometers (13,948 sq mi) with an estimated population of 1,874,303. It borders Senegal to the north and Guinea to the south-east.

Guinea-Bissau was once part of the kingdom of Kaabu, as well as part of the Mali Empire. Parts of this kingdom persisted until the 18th century, while a few others were under some rule by the Portuguese Empire since the 16th century. In the 19th century, it was colonized as Portuguese Guinea. Upon independence, declared in 1973 and recognized in 1974, the name of its capital, Bissau, was added to the country's name to prevent confusion with Guinea (formerly French Guinea). Guinea-Bissau has a history of political instability since independence, and only one elected president (José Mário Vaz) has successfully served a full five-year term. The new president is Umaro Sissoco Embaló, who was elected on 29 December 2019.

Only about 2% of the population speaks Portuguese, the official language, as a first language, and 33% speak it as a second language. However, Creole is the national language and also considered the language of unity. According to a 2012 study, 54% of the population speak Creole as a first language and about 40% speak it as a second language. The remainder speak a variety of native African languages. There are diverse religions in Guinea-Bissau. Christianity and Islam are the main religions practiced in the country. The country's per-capita gross domestic product is one of the lowest in the world.

Guinea-Bissau is a member of the United Nations, African Union, Economic Community of West African States, Organisation of Islamic Cooperation, Community of Portuguese Language Countries, La Francophonie, and the South Atlantic Peace and Cooperation Zone, and was a member of the now-defunct Latin Union.

Reference: Wikipedia