The co-founder of Wikipedia says the languages of Yoruba in West Africa and Swahili in East Africa are the most popular among the several African languages being used on the online encyclopaedia. Wikipedia co-founder Jimmy Wales, 45, says Yoruba is the most popular African language for Wikipedia, with 29,000 pages. The Swahili Wikipedia version is second among African languages with 23,000. Other African languages on Wikipedia include Afrikaans, Hausa and Zulu. Speaking in Lagos this week, Wales says his website is branching out from English. "For a long time, there was this sort of cultural concern as to why we have to do everything in English. What happens to local culture? Now, we are going to have both," said Wales. Wales founded Wikipedia in January 2001. Eleven years later, Wikipedia has become the go-to site for hundreds of millions of internet users seeking information about anything and everything. Its content is generated by thousands of self-appointed editors who write and rewrite the articles in an open, online process. Wikipedia has seven active editors working in Yoruba, but Wales hopes that more users for the online encyclopedia will appear in Yoruba as well as other African languages.