Nigeria: History
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                The British establish a presence around Lagos, which in present day is the most populous city in Nigeria.
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                Until 1914, Britain governs over Nigeria through "indirect rule", using local leaders. 
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                Nigeria gains its independence.
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                Three eastern states secede as the Republic of Biafra, sparking a bloody civil war.
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                The former Biafra regions are reintegrated into Nigeria following a surrender by Biafra's leaders. 
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                The presidents of Nigeria, South Africa, and Algeria launch the New Partnership for African Development, which aims to foster economic development and foreign investment and lift existing trade barriers. 
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                Lenders agree to write off two-thirds of Nigeria's $20 billion foreign debt. 
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                Oil production in Nigeria is cut in half as a result of strikes and militant attacks on oil pipelines. This decrease in production contributes to record-high world oil prices. 
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                Hundreds die in northeastern Nigeria after the Boko Haram Islamist movement launches an enduring campaign of violence. 
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                President Umaru Yar'Adua dies after a long illness. Vice-President Goodluck Jonathan, already acting in Yar'Adua's stead, succeeds him. 
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                Government declares state of emergency in three northern states of Yobe, Borno and Adamawa and sends in troops to combat Boko Haram. 
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                Muhammadu Buhari wins the presidential election, becoming the first opposition candidate to do so in Nigeria's history. 
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                Escalating attacks by Boko Haram from August onwards, targeting army bases. 
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                Muhammadu Buhari is re-elected for a second four-year term 
Sources:
BBC NewsBritannica
