Short answers, pulled from the story.
Around 2.3 million enslaved people were brought to the British West Indies. The colonies were central to the Atlantic slave trade, with sugar production providing the economic engine that drove demand for enslaved labor.
The West Indies Federation was a political union of Caribbean colonies of the United Kingdom that existed from the 3rd of January 1958 to the 31st of May 1962. It was created to achieve independence as a single state but collapsed due to internal political conflicts over governance and the limited powers granted to the federal body.
Six territories remain British Overseas Territories: Anguilla, the British Virgin Islands, the Cayman Islands, Montserrat, the Turks and Caicos Islands, and Bermuda. All other former colonies gained full independence between 1962 and 1983.
The Kingdom of England first established colonies in the region during the 17th century. The first permanent settlement was founded in St. Christopher (St. Kitts) by Thomas Warner, followed by Barbados in 1627, Nevis in 1628, and Montserrat and Antigua in 1632.
The West Indies Associated States was a form of free association between several Eastern Caribbean islands and the United Kingdom, created by the West Indies Act of 1967. Under the arrangement, the islands received greater sovereignty while Britain retained responsibility only for defence and external affairs.
The former British West Indies territories joined the Caribbean Community and a range of international bodies including the Organization of American States, the Association of Caribbean States, the World Trade Organization, the United Nations, and the Caribbean Development Bank.