Straight from the book

“The country was probably first known to Europe from the North, through the explorers of Northern and Central Africa, for in old records the Hausa and Fulani names are used for the country and its capital ; thus we see in Webster’s Gazetteer ‘‘ YARRIBA,” West Africa, East of Dahomey, area 70,000 sq. miles, population two millions, capital KATUNGA. These are the Hausa terms for YORUBA and for Oyo.”

Keep reading at Introduction ¶3 →