How did British Togoland become part of Ghana?

British Togoland became part of Ghana following a United Nations (UN) supervised plebiscite held on May 9, 1956.12

After World War I, the former German protectorate of Togoland was divided into British and French mandates, which later became UN trust territories in 1946. The British administration had already integrated the northern part of its sphere with the Gold Coast to reunite the Dagomba and Mamprusi kingdoms.321

Although there was significant advocacy from the Ewe people for a unified Togoland, the 1956 plebiscite resulted in a decision to incorporate the British trust territory into the Gold Coast. Despite a majority vote in favor of continued British trusteeship within the southern districts of Ho and Kpandu, the territory was formally incorporated into the Gold Coast on December 13, 1956. Subsequently, the combined region was renamed Ghana and achieved independence in 1957.132