Two eminent Yoruba kings, Oba Lamidi Olayiwola Adeyemi III, the Alaafin of Oyo, and Oba Adeyeye Enitan Ogunwusi Ojaja II, Ooni of Ife as well as Queen Diambi Kabatusuila of the Democratic Republic of Congo will join Ghana’s President Nana Akufo-Addo to launch one of Africa’s historic monuments, the