The Northern Region was a major arena of slave raiders and a key supply source for slaves who were sent to markets and sold to local merchants from the South. They were subsequently marched on the coast and resold to European traders for export. Geographically, Northern Ghana refers to three of Ghana’s ten administrative regions, i.e. Northern, Upper West and Upper East regions. Together, cover 42% of Ghana’s land mass and are inhabited by 20 major ethnic nationalities who speak 16 different languages. This diversity of peoples and languages in Northern Ghana reflects the rich and varied cultures and civilizations of the three regions including the 9th Century Koma civilization, noted for its rare and unique terra cotta art forms that still remains almost unknown to the outside world.