History
Further information: Volta–Niger and Benue–CongoYoruba is classified within the Edekiri languages, which together with the isolate Igala form the Yoruboid group of languages within the Volta-Niger branch of the Niger-Congo phylum. The linguistic unity of the Niger-Congo phylum dates to deep prehistory, estimates ranging around 15 kya (the end of the Upper Paleolithic). The Atlantic–Congo core of this group would have formed roughly 8,000 years ago. The Benue-Congo branch (which also includes the Bantoid branch) separated from Atlantic-Congo around the 5th millennium BC, ultimately spreading out in the Bantu expansion, while Volta-Niger is one of the branches formed by the peoples who remained in the Atlantic-Congo core territory.
The Yoruba group are assumed to have developed out of undifferentiated Volta–Niger populations by the 1st millennium BC. Settlements of early Yoruba speakers are assumed to correspond to those found in the wider Niger area from about the 4th century BC, especially at Ife. As the North-West Yoruba dialects show more linguistic innovation, combined with the fact that Southeast and Central Yoruba areas generally have older settlements, suggests a later date of immigration for Northwest Yoruba.
Read more about this topic: Yoruba Language
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