2007 April - Umaru Yar'Adua of the ruling People's Democratic Party is proclaimed winner of the presidential election with Dr Goodluck Jonathan as Vice President.

2009 July - Hundreds die in the northeast after Boko Haram launches campaign to have Sharia law imposed on the entire country. Security forces kill its leader.

2009 August - Two-month offer of a government amnesty for Niger Delta militants comes into force.

2010 May - President Umaru Yar'Adua dies after a long illness. Vice President Goodluck Jonathan, already acting in Yar'Adua's stead, succeeds him.

2010 October – Nigeria’s 50 years of independence celebrations in Abuja marred by deadly bomb blasts.

2010 December - Some 200 killed in reprisals after Boko Haram attacks.

2011 March - Goodluck Jonathan wins presidential elections.

2011 July - President Jonathan promises constitutional amendment for a single, longer term presidency.

2011 August - Suicide bomb attack on UN headquarters in Abuja kills 23 people. Boko Haram claims responsibility.

2011 December - Christmas Day bomb attacks kill about 40 people. Boko Haram claims responsibility.

2011 December - President Jonathan declares state of emergency to contain violence by Boko Haram.

2012 January - Fuel price strike causes major disruption. Unions suspend action when government reverses decision to drop fuel subsidies.

2012 January - More than 100 killed in single day of coordinated bombings and shootings in Kano shortly after Boko Haram tells Christians to quit the north.

2012 June – National Assembly summons President Jonathan to explain what government is is doing about the growing security situation in the country.

2012 July – The House of Representatives threatens to begin impeachment proceedings against President Goodluck Jonathan for low execution of budget.

Source: BBC