Major attacks blamed on Nigeria's Boko Haram
2009
July - Attacks prompt government crackdown in Bauchi and Maiduguri; 800 people killed
2010
December - Bombings in central Nigeria and church attacks in the northeast kill 86
2011
June - Attack on a bar in Maiduguri kills 25
August - Suicide bomber kills 23 at U.N. building in Abuja
November - Bombings in Damaturu and Potiskum kill 65
December - Christmas Day bombings across Nigeria kill 39
2012
January -- Gun and bomb attacks in Kano up to 200
February - Maiduguri market attack kills 30
June - Suicide car bombings at three churches kill 21
July - Attacks in Plateau state kill dozens, including two politicians at a funeral for the victims
2013
February - French family kidnapped in Cameroon, held hostage for two months
April - Fighting with troops in Baga kills up to 200; residents say troops set deadly fires
May - Attacks in Bama kill more than 50
July - Gunmen kill 30 at a school in Yobe
August - Gunmen kill 44 at a mosque outside Maiduguri
September - Gunmen kill 40 students at a post-secondary school in Yobe
December - Militants attack military installations in Maiduguri
2014
January - Militants kill 74 people and burn down a village in attacks in Borno and Adamawa
February - Gunmen kill as many as 60 in attack on school in Yobe
April - Militants abduct 276 schoolgirls
2009
July - Attacks prompt government crackdown in Bauchi and Maiduguri; 800 people killed
2010
December - Bombings in central Nigeria and church attacks in the northeast kill 86
2011
June - Attack on a bar in Maiduguri kills 25
August - Suicide bomber kills 23 at U.N. building in Abuja
November - Bombings in Damaturu and Potiskum kill 65
December - Christmas Day bombings across Nigeria kill 39
2012
January -- Gun and bomb attacks in Kano up to 200
February - Maiduguri market attack kills 30
June - Suicide car bombings at three churches kill 21
July - Attacks in Plateau state kill dozens, including two politicians at a funeral for the victims
2013
February - French family kidnapped in Cameroon, held hostage for two months
April - Fighting with troops in Baga kills up to 200; residents say troops set deadly fires
May - Attacks in Bama kill more than 50
July - Gunmen kill 30 at a school in Yobe
August - Gunmen kill 44 at a mosque outside Maiduguri
September - Gunmen kill 40 students at a post-secondary school in Yobe
December - Militants attack military installations in Maiduguri
2014
January - Militants kill 74 people and burn down a village in attacks in Borno and Adamawa
February - Gunmen kill as many as 60 in attack on school in Yobe
April - Militants abduct 276 schoolgirls