The history of Trinidad & Tobago has been one of invasion and conquest since its discovery by Christopher Columbus, who claimed it for Spain in 1498. In 1888, Tobago was amalgamated with Trinidad and administered as a single colony thereafter. The British sponsored the West Indies Federation as a potential post-colonial model, in the belief that most of the Caribbean islands would be unable to survive politically or economically on their own. The Caribbean peoples thought otherwise and the Federation collapsed in the early-1960s. By this time, Trinidad and Tobago had already been granted internal self-government and achieved full independence in 1962.