The BBC maps the challenges facing Nigeria, Africa's most-populous nation and largest economy, as it approaches a presidential election 20 years since the return of democracy: Four years ago ...

The history of presidential elections in Nigeria is characterised by controversies over the credibility of the process but these five picks top the chat. 5 most controversial presidential ...

Votes were cast without intimidation and violence. This should be emulated in Nigeria, where elections are militarised with lockdowns. As Nigerians were licking the wounds of serial electoral ...