The Sierra Leonean Creole or Krio is an English-based creole language that is lingua franca and de facto national language spoken throughout the West African nation of Sierra Leone. Krio is spoken by 96 percent of the country's population, and it unites the different ethnic groups in the country, especially in their trade and social interaction with each other. Krio is the primary language of communication among Sierra Leoneans at home and abroad, and has also heavily influenced Sierra Leonean English. The language is native to the Sierra Leone Creole people, or Krios, a community of about 104,311 descendants of freed slaves from the West Indies, Canada, United States and the British Empire, and is spoken as a second language by millions of other Sierra Leoneans belonging to the country's indigenous tribes. Krio, along with English, is the official language of Sierra Leone. The Krio language is an offshoot of the languages and variations of English brought by the Nova Scotian Settlers from North America, Maroons from Jamaica, and the numerous liberated African slaves who settled in Sierra Leone. All freed slaves—the Jamaican Maroons, African-Americans, and Liberated Africans—influenced Krio, but the Jamaican Maroons, Igbo, Yoruba and Akan Liberated Africans were the most influential. It seems probable that the basic grammatical structure and vowel system of Krio is an offshoot of Jamaican Maroon Creole spoken by the Maroons, as there are well-documented and important direct historical connections between Jamaica and Sierra Leone. The language was also influenced by African American Vernacular English while the majority of the African words in Krio come from the Akan, Yoruba and Igbo. As an English-based creole language, the Sierra Leone Krio is distinct from a pidgin as it is a language in its own right, with fixed grammatical structures and rules. Krio also draws from other European languages, like Portuguese and French, e.g.