What colony did the british create for the freed slaves in west africa in 1787?

Sierra leone

at the end of the eighteenth century the british colonization began in sierra leone, primarily by the sierra leone company of  alexander falconbridge. in 1808, sierra leone became a british colony, it remained till the twentieth century, when they began the process of decolonization. 

following type of cultural development caused people to want and buy new products on the market :

industrialization