the current wiki page gives a concise description, save for a few misconceptions here and there. Hopefully people wont go and spoil it further.

http://en.wikipedia.org/wiki/Yoruba_language

Varieties

The Yoruba dialect continuum itself consists of several dialects. The various Yoruba dialects in the Yorubaland of Nigeria can be classified into three major dialect areas: Northwest, Central, and Southeast.[9] Of course, clear boundaries can never be drawn and peripheral areas of dialectal regions often have some similarities to adjoining dialects.


North-West Yoruba (NWY). Abẹokuta, Ibadan, Ọyọ, Ogun and Lagos (Eko) areas

Central Yoruba (CY) Igbomina, Yagba, Ilésà, Ifẹ, Ekiti, Akurẹ, Ẹfọn, and Ijẹbu areas.

South-East Yoruba (SEY) Okitipupa, Ilaje, Ondo, Ọwọ, Ikarẹ, Ṣagamu, and parts of Ijẹbu.


North-West Yoruba is historically a part of the Ọyọ empire. In NWY dialects, Proto-Yoruba /gh/ (the velar fricative [ɣ]) and /gw/ have merged into /w/; the upper vowels /i ̣/ and /ụ/ were raised and merged with /i/ and /u/, just as their nasal counterparts, resulting in a vowel system with seven oral and three nasal vowels. Ethnographically, traditional government is based on a division of power between civil and war chiefs; lineage and descent are unilineal and agnatic.

Central and South East Yoruba are considered older forms, although this could be debatable.

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Wow what a coincidence, I think today is Yoruba day on nairaland.

Does that disturb you?

That's exactly my point.

I don't get it.

Right, had it been I saw this thread early enof, I wont have need to create a thread so similar to it. For the haters, it would be like rousing their envy, sort of.

Oh, well that can't be helped.

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