 Another possible meaning may come from the word Ẹsẹ̀gbá, the title of a chief which led several groups of the Egba to their present location.The Egba group, originally under the Oyo Empire, became independent following the spectacular collapse of Oyo in the first half of the 19th century.Wars with the Dahomey, in which the Egbas were successful partly due to the protection afforded by the Olumo Rock, led to the founding of the city of Abeokuta, which literally means "under the rock".